How Early Can You Do a Blood Test for Gender

February 17, 2022 Post a Comment

Nathan has two daughters. When he and his wife were trying to accept a baby, they did considerable inquiry on issues concerning pregnancy.

REVIEWED Past
Dr. Mark Trolice, Director of Fertility Care, The IVF Center

How Early Can a Blood Test Detect Pregnancy Hormones?

"Pregnancy blood tests are reliably able to detect pregnancy at much lower ranges of circulating pregnancy hormone in the claret and thus tin grab a pregnancy in its very early on stages," says Dr. Cindy M. Duke, a doc with the Nevada Fertility Institute in Las Vegas. "Circulating levels of pregnancy hormone would have to exist much higher in order for it to be detected in the urine (home pregnancy examination)."

Do you recollect yous might be pregnant, but yous are not sure nearly the reliability of the home test you've taken? Or perhaps you want to know now if you're meaning merely it's too early to take a urine test, and so you are considering a blood test.

When can you trust the home test and when do you demand to have a blood examination instead?

There is much to consider when deciding whether or not to go the blood test. How authentic are they? How much trouble and cost are they? How soon can you lot take one and when will you go the results?

Let's explore.

how-soon-can-a-blood-test-detect-pregnancy — Elvis Huang [CC-By-3.0-2.5-2.0-one.0 (http://creativecommons.org/licenses/by/3.0-ii.5-ii.0-1.0)], via Wikimedia Commons

What Is an hCG Claret Pregnancy Test?

In that location are 2 types of blood tests to determine pregnancy:

Qualitative hCG blood serum tests check to see if a hormone called human chorionic gonadotropin is present in your blood. HCG is a hormone produced by the body during pregnancy. A positive result means y'all are pregnant and a negative effect means yous are not pregnant.
Quantitative hCG claret serum tests also bank check to see if hCG is present in your blood, but these tests can discover even trace amounts of the hormone. Because it is more precise, this test helps to determine whether the pregnancy is normal and good for you.

How Early Can a Blood Exam Tell Me I'1000 Significant?

"The primeval a claret test can discover hCG is approximately 8-10 days mail-ovulation," says Dr. Marker Trolice, Managing director of Fertility Care at the IVF Center in Wintertime Park, Florida. "What makes things more challenging? A woman who has irregular menstrual periods and does not know when she ovulated."

Both qualitative and quantitative hCG blood serum tests can accurately detect pregnancy viii-ten days subsequently ovulation (about a week before your period is due). This is an advantage to taking the blood examination: You can take it sooner than the urine exam.

How Authentic Are Claret Pregnancy Tests?

The blood exam for hCG is the about accurate to notice a pregnancy, says Dr. Mark Trolice.

Blood tests have a 99% accuracy charge per unit, so they are near always accurate. The principal reason for this is that the quantitative test tin detect fifty-fifty the smallest traces of the pregnancy hormone hCG. However, hormone levels can vary from i adult female to another.

"The range of normal beta hCG levels is very wide," says Dr. Serena Chen, a fertility practiced at the Constitute for Reproductive Medicine and Science at Saint Barnabas Medical Heart in Livingston, New Bailiwick of jersey, "so information technology'south important to have the help of your medico to interpret test results."

How Long Do You Take to Await for the Results of a Blood Examination?

So yous've gone to the medico's function, waited to be seen, and had your blood fatigued. Of course, it's non over.

How Accurate Are Urine Pregnancy Tests?

Comparatively, urine tests, or habitation tests, tin can be inaccurate 6% of the time. They are more accurate when taken no earlier than seven days after a missed flow. Taking a habitation pregnancy test too presently can produce an inaccurate outcome.

Pregnancy Claret vs. Urine Tests

Blood tests:

are more expensive than domicile urine tests
have to be given at a doctor'south office
can be done but one week after ovulation
can take up to 48 hours to produce a result
are more than accurate than urine tests.

Urine tests:

are convenient and private
are less expensive
produces results in minutes
are only accurate when done vii days afterwards a missed flow
produce more false positive results than blood tests.

Using Blood Tests to Diagnose Ectopic or Tubal Pregnancy

"An early ectopic pregnancy may yield a false negative if you test as well early," says Dr. Chen. If you have concerns nearly the possibility of ectopic pregnancy, discuss them with your physician.

Ectopic pregnancies are fertilized eggs that have implanted in the fallopian tube instead of the uterus. This blazon of pregnancy can present similar symptoms as a normal pregnancy but can be life-threatening for the woman.

A quantitative hCG claret test tin help diagnose (or rule out) an ectopic pregnancy. They are more precise than qualitative tests and detect lower levels of hCG in the blood. In an ectopic pregnancy, hCG levels are usually lower than in a ordinarily developing pregnancy and too rises at a slower-than-normal rate.

While an ultrasound exam may exist necessary to confirm the diagnosis, the blood test can be washed earlier, which is important given the risks of this type of pregnancy.

Simulated Positive Results of Blood Pregnancy Test

False positive results of pregnancy blood tests are rare, but they do happen. Some conditions can pb to a result of pregnancy when the woman is, in fact, not pregnant.

Because blood tests observe the presence of the hormone hCG, whatever level of hCG—even if it is there for another reason—could pb to a false positive test upshot. Some non-pregnancy reasons for hCG to exist in the blood are:

Biochemical pregnancy, or a pregnancy that is lost before the woman even knew she was meaning.
Pituitary hCG, or hormones created by the pituitary gland that are like to hCG. It is possible for women to have low levels of hCG in the blood and not be pregnant.
Antibodies that interfere with hCG tests and lead to elevated hormone levels.

What Is Phantom hCG?

Phantom hCG is a simulated positive pregnancy claret test.

In these cases, the blood test for hCG cross-reacts with non-pregnancy related proteins in the claret called heterophile antibodies.

"When this occurs, it can actually have serious consequences unless your physician is aware of this false positive risk," says Dr. Marker Trolice. "What are the risks? Ectopic pregnancy, where an embryo implants outside the uterus. This is a potentially life-threatening event but is often conservatively treated using an injection of the chemotherapy agent, methotrexate."

But if the blood test for hCG is a simulated positive, and there is, in fact, no ectopic pregnancy, the woman may be needlessly exposed to repeated injections of methotrexate with risks of serious side effects from this medicine.

Another condition that can pb to a imitation positive, says Dr. Trolice, is gestation trophoblastic disease, or cancer of pregnancy tissue. In this scenario, persistent low levels of phantom hCG tin be misinterpreted for this illness resulting in ambitious simply unnecessary medical intervention.

How to avoid over-treating a false positive hCG test? The urine pregnancy test, because heterophile antibodies are not present in urine.

Tin Claret Pregnancy Tests Give False Negative Results?

If you lot have had a pregnancy blood test and it came back negative, merely y'all experience pregnant, it is possible that yous really aren't significant. Many of the symptoms of an approaching menstruum (nausea, fatigue, crampiness, breast tenderness) can be confused with pregnancy.

Is It Possible to Accept a Pregnancy Blood Test Likewise Early on?

Yes. In rare cases, it takes longer than usual for hCG hormone levels to build up in the claret. If yous had a negative blood test event but you actually feel significant, expect a few days and get tested once more.

Take-Away

So as you tin meet, there are many things to consider when you are trying to figure out whether to accept the claret test and what to await from it. It is more than expensive and less convenient. You volition have to wait for the lab to get results. Notwithstanding, it is more accurate, can discover the slightest bit of pregnancy hormone in your blood, and you can examination sooner than you can with a urine examination.

This content is accurate and truthful to the best of the author's cognition and does not substitute for diagnosis, prognosis, treatment, prescription, and/or dietary communication from a licensed health professional person. Drugs, supplements, and natural remedies may have dangerous side furnishings. If pregnant or nursing, consult with a qualified provider on an individual basis. Seek immediate help if y'all are experiencing a medical emergency.

Ruth on June 11, 2020:

Hi..ive been having cramps and pain in my lower bk 2weeks before my period engagement and now im 1week 2days late for my period,merely im still getting menses similar cramps.i took 2 urine test and i blood test,both came bk negative..im dislocated..demand help

aisha on Jan 06, 2020:

I had sex a 24-hour interval earlier my ovulation hateful to say I was on my fertile day and my ovulation was the adjacent 24-hour interval and I had sex a day before that....is information technology possible to go pregnant

Kaylee on December 15, 2019:

Ill prefer your child paula lol

Sharon on September 09, 2019:

I had unprotected twice I. the month of September 2and 3.2 of September was my ovulation time and my period is schedule to come on the 17. But I want to know if I tin exercise a pregnancy test before my period time to know if I'm significant or not

Clara on July 12, 2019:

You say that a urine test is only authentic done a week after a missed catamenia. This is inaccurate.

Lovely on Oct 24, 2018:

Hello, i would similar to ask for your help, i have a 34 day cycle, and had unprotected sex last 27th of september, i accept been cramping for 2 weeks and then I've missed my flow that was supposed to be on the 17th of Oct, now im half-dozen days late, i took a urine test last saturday on the 20th with negative result and on the 22nd I took a bloodtest with another negative result, so I causeless i was non pregnant , but the day after that i had some spotting and it stopped the next day and i still feel some cramping, please assist is this because of stress or am i actually pregnant?

Kim on September xviii, 2018:

Hi..ive been having cramps and pain in my lower bk 2weeks earlier my menstruation appointment and now im 1week 2days late for my period,simply im still getting period like cramps.i took 2 exam and both came bk negative..im confused..need assistance

May on September 07, 2018:

How-do-you-do there I have a line nether my omphalus to the pelvic and most pregnancy symptoms but my master worry is the line only got negative examination and just took a blood examination so I have to await need help cheers

amanda on August 14, 2018:

How do I know I am going to exist a female parent for the first fourth dimension.

lydia on August 11, 2018:

i have i week afterwards unprotected sex and am experiencing some change in mybody but i got my catamenia earliar than usual and its regular could i exist pregnant

Paula on June 28, 2018:

When i take blood pregnancy test ( which is part of the requirements of my piece of work) the effect came positive I was daze considering I didnt have sex to my boyfriend and when I have the home pregnancy test it came negative result, now I missed ix days of my menses and my breast is pain I dont know if this is stress because I'thousand not nonetheless ready to have a Kid and I'thou confusing because there's nothing happen to us (boyfriend) What practice you lot think?

Alexis on June 19, 2018:

I have Nexplanon which is a birth control that is highly affective due to not getting my catamenia ever I take no way of knowing whether I am pregnant. I have been having some sharp cramping in my lower uterus area and I've been extremely tired all the time. I recently (a week ago) took a at home urine examination and it was negative. Should I just go to the doctors and have a test washed? Does anyone know of pregnancy symptoms y'all might have while being on this type of contraceptive?

Rae on April 13, 2018:

Thanks for this artical. Was looking for a simple answer to how early claret hCG test tin notice pregnancy but couldn't end reading! It was so interesting and informative. I have questions answered that I didn't even know I had!

Stella on March 25, 2018:

I had my last menstruation on 25th of February,sex on 13th of march and 20, have not see my menstruation, washed blood test on 23rd of march but negative. What could be the problem.

haseena on March 25, 2018:

1st i missed menses and then i accept pregnency test how many days to take

larissa on March 13, 2018:

So my last period was feb 11. I took a pregnancy test negative on march 12. I am getting heart fire and cramping since march 1st merely no period. Been nausea since and so also. What day tin i become a blood test and what mean solar day can i take another pregnancy exam to encounter if i can go a postive

Marissa Henderson on March 05, 2018:

Hi so Feb 11 I had my peroid and Friday and monday i got to pregnancy blood tests washed and they both didn't change they both said less and then 2.4 I need to know what to do next im suppose to start my period March xi I need advice

Emily on March 05, 2018:

Then I had my period last in January on the 24th and had intercourse everyday until the 4th of last month and from the 16 until the 2 of this month and I still haven't had my catamenia simply spotted for 4 days light . could I be pregnant now?

rossy on February 06, 2018:

From November I m not having my periods regularly last month I had unprotected sexual practice with my partner I have tested later 10days of intimacy it shows negative?? Still I get meaning????

Ann on January 26, 2018:

I havent seen my period for like 2days now i went for a blood pregnancy test and information technology showed negative but my period hasnt come still...What will i exercise?

Katie on January 06, 2018:

I take a pregnancy test at abode and the doc information technology came back povsitive

Just the doctor did a blood test and it came back negative.

JENN on Dec 27, 2017:

I HAD Sex activity ON December 3RD, THE IUD WAS TAKEN OUT Dec 4TH AND GOT MY PERIOD ON DEC sixth. CAN I STILL GET PREGANT FROM THE INTERCOURSE THAT TOOK Identify ON December third?

Samvia munir on December 16, 2017:

My serum examination positive what I practice

glory on Nov 17, 2017:

i had unsafe sex 4days after my menses,my human pulled out

now my period is little late and i took urine test twice its positive but am positive that i had no sperm in my 5 during last sexual practice!i be feeling PMS syndromes for nearly 2weeks

i doubt these tests

QUESTION....hCG can be detected few days before period???

Star on November 05, 2017:

I had claret examination done to get my nascency control shot started upward cause i was a month late and had sexual activity ii days previous to blood test. Ive been really nauseous lately is there a chance i could be pregnant

i am Helen i got significant for 5 days carried out claret test but still negative on October 27, 2017:

I am Helen I got pregnant for v days I carried out blood test only all the same negative

Lori ward on October xi, 2017:

I am wondering if I can be pregnant considering I took a test and it was negative and I had some light blood and so spoting and and then calorie-free blood and the spoting again and now nada is it to before long to take a blood test please permit me know

Xxxx on September 07, 2017:

I had my last period May eighth 17, i've had spotting twice, still not had a period, i've done about 8 home pregnancy tests all negative, the doctor has done two negative pregnancy tests, i've now been sent for bloods to exist done i'm awaiting results. My stomache is jutting now from the top of my stomache, my waist is disappearing and i'yard constantly tired and want to swallow loads! I simply needs to know if i am significant cos something is wrong?

Mary on September 04, 2017:

Howdy, I had my periods on 23rd of August 2017,had unprotected sex on 28th of the same month and on 2nd of September, I and then took emergency pills on 3rd of September and had unprotected sex once again the same day after taking the pills.

What are the possibilities, please help. Can I exist pregnant?

My periods are not regular.

Special Kay on September 02, 2017:

I had intercourse on the 21st, 22nd, and the 28th of August. My period was due to come on the 29th of Baronial, simply did not show. I waited until Baronial 30th to take a test and it was instantly positive! I took a 2nd one later in the day and it was as well positive. Is it possible to accept a positive test so presently?

Kayla on September 02, 2017:

I had sex on August the 7th. I then had a claret pregnancy test done with qualities/quantitative serum done on August 13th and got a negative result. If the upshot were positive would it had of shown upwards?

Xmen on June 25, 2017:

My Gf is scared whether she is significant..her menstruum is almost ii months belatedly. Then we did a normal claret test.. Report is not coming nonetheless.. So I desire to know if information technology can tell if she is pregnant or not??

DONT KNOW ANYMORE on May 29, 2017:

Howdy In that location

I WAS DIAGNOSED WITH PCOS, WENT ON CLOMID FOR iii MONTHS, THIS WAS MY LAST CYCLE, DID Non Go THE USUAL SYMPTOMS OF PMS, SO STARTED TO WONDER, TOOK A HPT 6 DAYS Before MY PERIOD IS DUE, THE TEST GAVE A FEINT POSITIVE WITH FIRST MORNING URINE, TOOK ANOTHER ONE A FEW HOURS Later on, THAT WAS NEGATIVE, I WENT FOR A Blood Exam THE Aforementioned DAY IN THE AFTERNOON, Besides NEGATIVE, So COULD I Nonetheless Be PREGNANT? Menstruum IS EXPECTED Midweek...

Peanut on May 21, 2017:

My wife has been spotting for a few days a light blood-red and today she says honey why is information technology a lil darker that with a lil blood clot, I said I have know thought, so I googled it and it said, if she is meaning so it'due south the 1st trimester of beingness pregnant and don't be scared,she did go and become a blood exam like a day ago or so, merely waiting to hear back from the doctor'southward role

Larissa on April 27, 2017:

Hi I went through an iui bicycle through ivf I had the trigger and also pregnyl 3 times after getting inseminated I then got my two week pregnancy test she said my levels were at 9 so she can't so I'm not pregnant because 5 and under ways ur not significant simply she thinks that my levels might b upward a flake cause if the medication I was on. Has anyone has this please let me know

Annabel on Feb 07, 2017:

My Implannon was in 5 years too long. I had a slight 2-three day period before Christmas. Before that I was regular 28 days bar one month before the two-iii days I bled for 3wks. information technology's now Feb nd still no menstruation I'm worried the 2-3 days was a show. Done a examination 2 wks ago which was negetive iv had a blood test not checking for pregnancy nd the nurse said nothing. What's going on could I be pregnant?

lexie on September 08, 2016:

and then I'm 20 and i suspected i was pregnant, i did ii drugstore tests which were negative (information technology was as well early on) and i went to the gynecologist today, she did a vaginal ultrasound and told me i seemed to be pregnant (that there was a lot of fluid which there usually is early in a pregnancy) then she sent me to practice a blood examination but it came out negative. i'm very confused, i oasis't gotten my menstruation nevertheless, could i be pregnant even though the test was negative? I'thou only 2 days belatedly on my menstruation and the interaction happen at the 10th of August. Any help anyone? I though i would expect until I'thou seven-8 days late so get to an other gynecologist. could i exist meaning or..? can anyone help me out? i know that blood tests aren't too reliable when information technology's that early on in a pregnancy because you dont have plenty of that hormone in your claret yet correct? :/ please help I'm stressing out

Pequena on May 04, 2016:

I been feeling pregnant for most 2 months now. Symptoms: sore breasts, areolas darkened with small bumps, leakage when nipples are squeezed, dizziness, nauseas, no appetite, visible veins (arms, legs, breasts), headaches, tiredness, bloading, metallic gustation, moodiness. Had bleeding lime periods for the passed 2 months. Had urine test and blood work done which all were negative. Saw the doctor and did blood work and tested my prolactin levels and my thyroid, also checked my pituitary gland for anedoma and everything is normal. I'm still having all the symptoms and I don't know what else to do or call back. Can anyone assist please

Neha on January 05, 2016:

I am 22 years old, and a pcos patient!

I had sexual practice with my boyfriend on 1st jan 2016, I had an ipill later that!

Just nosotros had unprotected sex once more ! I googled and chose not to consume ipill again!

How tin can I exist sure of not existence pregnant? Do I need to have a pregnancy examination?

elizabeth on October 26, 2015:

am 10 days to my menses,tin can blood test find if am meaning?delight any help

Jenn on October 08, 2015:

Hello i had a question about blood examination and pregnancy is it true that sometimes it wont even bear witness so until nigh a month to two months i ask cause my last flow was in aug. And i notwithstanding havent had my catamenia i had a blood test done an information technology was negitive is why im asking

Carlota on October 03, 2015:

How-do-you-do im 4 days late iv taken ii hpt both negative im having a picayune dizziness lately and been having cramps should I go go a claret pregnancy exam ??

Ivone on July 31, 2015:

Can hCG be detected 3 days after ovulation? Is the 7 to 12 days afterward ovulation pretty accurate, every bit in cannot be detected sooner? I had a vaginal ultrasound and doc couldn't tell if i was meaning so she had me take a blood exam, which came back negative. I ovulated around Tuesday (i took the home test) and had intercourse days leading up to ovulation. That'south why i ask :)

Chrissy on June 01, 2015:

I have taken 3 tests 10 dpo 13 dpo and 14 dpo and all negative i had intercourse last thursday and started to spot on fri and mow its monday an i have even so been but spotting some pinkish some brown som blood reddish and a few times with clots. We have non taken any more HPT im nervous and scared to .... My question is tin can it be my menstruum if im only spotting and in that location is no blood flow.

vicky on May 28, 2015:

Howdy im 10 weeks tardily with pcos...ive washed pregnancy tests n come back negative....I had a hormone claret test last week and got a borderline result today...Iive gotta look for telephone consultation tomorrow to find out what it means.....could it mean im meaning? As ive been trying for over a year.....

laurice on May 19, 2015:

Scared, I am older and now I am nine days late. Scared because I take always wanted children. I have been PG in one case ended with an ectopic pregnancy...Injure Beyond BELIEVE. Headed to doctor in an hour for blood exam, don't want a negative result. Can't talk to anyone I know because I am tired of being disappointed. Praying for +++

kia on May 12, 2015:

Hi anybody I had my mirena removed final Fri and me and my boyfriend had been very sexually active for the pad couple of days I take been having lower cramps besides as being very sleepy. I took a pregnancy test it came back negative I an thinking that I might exist to early to tell. Whatever suggestions on why I am have these cramps? Are when to have another examination?

lisa on May 06, 2015:

I just found out i am pregnant. Took two hone test and got claret work washed. All are positive. Only i am having a dull pain on my, correct lower back side. And nether my right rib.

Does antine know if this is normal?

steph on April 01, 2015:

Yes, merely information technology could as well be your body adjusting

Jordan Yates on March 30, 2015:

I've taken pregnancy exam several times, I have difficult and sore nipples , and white in the tips of them, I take a white discharge that I've seen on the internet it'south a yeast infection simply my friends who have been pregnant say that they just had a white discharge during pregnancy and that a yeast infection is discolored. I have taken 3 test all look to be negative the the well-nigh resent I take taken shows negative but if I tilt information technology or concord a lite nether the test at that place is a articulate line, just the other two test doesn't have the clear line under the light. I've had cramps and bloating feeling , and some nausea . I resentful had my nexplanon birth command removed from my arm, the medico said I should take a period in a couple days later information technology was removed simply information technology's been a month and I've had no period yet! Could I be meaning?

NathaNater (author) on February 20, 2015:

Nicole, it might be a adept thought to come across a md and encounter if you can have a claret test done; they are more accurate and reliable.

Nicole Franco on February 19, 2015:

I'm 19 days belatedly on my menstruum i have taken three domicile tests and they are all negative i pee oftentimes and my chest are really tender to the indicate to where i tin can't fifty-fifty lay on them i am a little worried

NathaNater (writer) on January 14, 2015:

Good luck, Shai. Sounds hopeful. Hopefully your daughter volition soon have a brother or sister.

Shai on January 14, 2015:

I've taken 9 first response pregnancy tests all showed a very faint positive I'thou Supose to start my period in three days I have a drs appt in ii days so I'm gonna have another test done when I get hopefully I am I have a 3 year old daughter and she needs a brother or sister :) wish me luck

NathaNater (author) on January 06, 2015:

It is safe to have the PPD test if you're pregnant and pregnancy volition non affect its results. But it is wise to consult a dr. and tell medical professionals that y'all think you might be pregnant. Too, one of the routine tests during pregnancy is a blood test for rubella. However, you cannot be immunized if it turns out you're pregnant because it could injure the baby. And then, if y'all are talking nigh immunizations, you should not take them washed if you think you are pregnant.

If you had implantation bleeding before and during your missed period, that could be a sign that you are pregnant. The urine tests could be inaccurate, peculiarly if y'all've had something to drink because and so the urine is diluted; it is best to take them in the forenoon before you lot've had anything to drinkable. The claret examination is much more accurate, 99% accurate, considering it can discover the smallest traces of the pregnancy hormone.

beth on January 06, 2015:

Well I am confused considering I am late from my menses a week and 2 days and I've taken two hpts and they were negative and went to planned parent hood had pee test it was negative but I truly believe I am pregnant but to early to prove I had what I think was implantation bleeding 3 days before my missed flow and some throughout when I was sup post to become my catamenia and its been a week since that should I get a blood test. And I am getting a new task and need rubella and rubeolous and PPD done I don't know if that will affect if I am pregnant

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