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Doctor insights on: How Soon Can I Get A Blood Test For A Pregnancy

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How many days after a missed period should I get a blood test for pregbancy?

How many days after a missed period should I get a blood test for pregbancy?

Same day: You can wait longer but a serum (blood) test is reliable even a day or two before the expected missed period. ...Read more

Dr. Austina Cho
4 Doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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Will a standard blood test screen for pregnancy?

No: Standard blood studies do not address that question. A quick urine test for HCG is the easiest way. ...Read more

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I had a positive urine screen on friday and hCG blood test on monday. My hCG was only 7.2, is this an indication of a chemical pregnancy/miscarriage?

I had a positive urine screen on friday and hCG blood test on monday. My hCG was only 7.2, is this an indication of a chemical pregnancy/miscarriage?

Repeat..: It is certainly a low Hcg level but still you would need to have it repeated in order to have a final diagnosis. With pregnancy the levels should be raising steadily. Make sure you follow up with your GYN provider in order to get all the tests that you need in order to find out. ...Read more

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My clear blue pregnancy test came up negative. Should I get a blood test to make sure?

My clear blue pregnancy test came up negative. Should I get a blood test to make sure?

When did you do it?: If you have been sexually active and have missed your period then you can go ahead and take a home pregnancy test (HPT) now. If negative and still no period would repeat HPT in a week. Take care. ...Read more

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When can I get a + blood test for pregnancy? I'm 7dpo or so today. Ttc

When can I get a + blood test for pregnancy? I'm 7dpo or so today. Ttc

See below: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about two weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. Please seek care from a doctor to protect your and your baby's health. ...Read more

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Negative pregnancy test after 38 days. 19 days since 6 days of light bleeding. Should I get a blood test or trust it? I've been constantly nauseas.

Negative pregnancy test after 38 days. 19 days since 6 days of light bleeding. Should I get a blood test or trust it? I've been constantly nauseas.

Something's going on: Could try another test (follow instructions exactly) If negative, see your doctor, likely a blood pregnancy test will be done since you ad an abnormal period and are nauseated. If negative other cause of nausea can be looked for and treated. If you have abdominal pain, fever, vomiting, dizziness or weakness, go to the ER though. ...Read more

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7days late periods...age 24 good health...negative home pregnancy test today...when can I take another hpt to b sure or should I get a blood test..

7days late periods...age 24 good health...negative home pregnancy test today...when can I take another hpt to b sure or should I get a blood test..

May repeat in a week: Today's home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, vaginal spotting, or medications. A test gives a reliable result 3 weeks after sex (or when conception might have happened) or 1 week after missing a period. If done sooner, a negative result may be due to testing too early, such as less than 2 weeks after conception. ...Read more

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Part 2: I toook a pregnancy test 5 days ago & it said "Not Pregnant" I believe it's wrong. My period is 3 days late. Should I get a blood test?

Part 2: I toook a pregnancy test 5 days ago & it said "Not Pregnant" I believe it's wrong. My period is 3 days late. Should I get a blood test?

Yes, Tested too early: Home pregnancy test should be done 5-6 days after a missed period, negative result from a test done too early does not rule out pregnancy. You may get a blood test which would be positive now if you are pregnant. Or you could repeat the home test in 4-5 days. ...Read more

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3 consecutive missed periods, several negative pregnancy tests. Take Loestrin 1.5/30 reliably. Pregnancy tests inaccurate? Should I get a blood test?

3 consecutive missed periods, several negative pregnancy tests. Take Loestrin 1.5/30 reliably. Pregnancy tests inaccurate? Should I get a blood test?

Not Uncommon: There are some women who may eventually stop menstruating on OCPs, especially if they have been on them for a period of time. Or, if they have some conditions like polycystic ovarian syndrome. If 3 pregnancy tests are negative, you are not likely to be pregnant. As long as you take your BCP as directed, there should be nothing to worry about. ...Read more

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How old do you have to be to get a blood test done to check for pregnancy?

How old do you have to be to get a blood test done to check for pregnancy?

No requirement: That can be done at any age but the over the counter pregnancy tests are quick, easy and just as accurate. ...Read more

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Would like to find out if I should take a pregnancy test or go get a blood test done for pregnancy?

Would like to find out if I should take a pregnancy test or go get a blood test done for pregnancy?

See below: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about 3 weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully. ...Read more

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How much blood is needed to get a blood test for pregnancy?

How much blood is needed to get a blood test for pregnancy?

About 1.0 ml: A usual tube contains about 5 ml which is more than enough for the test. ...Read more

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How reliable are at home pregnancy tests? Should one get a blood test by doctor instead?

Fairly reliable: Home pregnancy tests are marketed with the oversight and approval of the fda. The use a proven technology, and if used correctly are usually reliable. Any laboratory test, even a blood test in a doctor's office or hospital, has a small false positive and small false negative rate. By "small" I mean very small in the case of pregnancy tests. ...Read more

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I'm 5 days late and having some mild cramping. I've taking 2 pregnancy test & both were negative. I was wondering if I should get a blood test done

I'm 5 days late and having some mild cramping. I've taking 2 pregnancy test & both were negative. I was wondering if I should get a blood test done

Urine pregnancy test: Home pregnancy tests are very sensitive. If your period hasn't come a week after the missed date, repeat the pregnancy test - it should be accurate. You can also always see your doctor for a checkup and blood test. ...Read more

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Period 1 month late, pregnancy test negative, but the line was very dark and thick. Will get a blood test in a few days. Could I be pregnant?

Period 1 month late, pregnancy test negative, but the line was very dark and thick. Will get a blood test in a few days. Could I be pregnant?

Package insert: Compare your test result to the image portrayed in the package insert that came with your pregnancy test. A negative test is reliable. If you are uncertain of the interpretation of the test result then a blood pregnancy test is reasonable. ...Read more

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Its been 2 months since I've gotten my period. I've taken 2 pregnancy test but they both showed up negative. Should I go get a blood test? Could I be

Its been 2 months since I've gotten my period. I've taken 2 pregnancy test but they both showed up negative. Should I go get a blood test? Could I be

Skipped periods: There are a lot of reasons for a skipped period including stress. If the pregnancy test is negative, the best thing to do is wait to see if it comes back normally next month. If it doesn't, it's time to have an evaluation. Other causes of skipped periods include eating disorders, pcos, excess exercise, medications, thyroid disorders and some others. ...Read more

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4 months since last depo, been having symptoms of pregnancy, is it my hormones or should I go get a blood test from the doctor?

4 months since last depo, been having symptoms of pregnancy, is it my hormones or should I go get a blood test from the doctor?

The only way: To truely differentiate those symptoms is to do a serum or urine HCG test. Breast tenderness and swelling, cramping, and and many other early pregnancy symptoms are the same as period symptoms. Doc can do a blood test that is the most sensitive. Don't forget that Depo-Provera can help protect you from pregnancy, but it doesn't do anything for std's--which frequently are forever for women. ...Read more

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I took a home pregnancy test almost 3 weeks after having sex, is it most likely to be accurate? I want to trust the home pregnancy test, but I am not sure. I cannot get a blood test.

I took a home pregnancy test almost 3 weeks after having sex, is it most likely to be accurate? I want to trust the home pregnancy test, but I am not sure. I cannot get a blood test.

Yes: Yes it probably is. However be patient and wait a week for your period, if still nothing repeat the test. At that point if you still do not menstruate you may need a blood test and perhaps something to get your period started. Hope this helps. ...Read more

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My period is 6 days late. As of now, I would have conceived 11 days ago. All home pregnancy tests are negative. Should I go get a blood test done? Do you think I could still be pregnant despite the fact that the home pregnancy tests are negative?

Low likelihood: If you did the tests correctly and these were negative at 6 days after missed period, likelihood of pregnancy is low. It is okay to take a blood test as it is more sensitive and a negative result would rule out pregnancy.
If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD.
Practice safe sex.
Get HPV vaccine. ...Read more

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What blood test should I get for pregnancy?

What blood test should I get for pregnancy?

A beta-HCG test.: A serum or urine beta-human Chorionic Gonadotropin test is/are best for determination of pregnancy. There are home pregnancy tests which mostly test urine, and serum/blood tests, which are done in the clinical lab. It would like;y be best to wait a week, and then go see your doctor to get a serum test in the lab as an outpatient. ...Read more

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Is it possible to take a pregnancy blood test to soon and still get a negative result?

Is it possible to take a pregnancy blood test to soon and still get a negative result?

Yes: Blood tests can be done soon after conception (8-9 days after). It's best to wait until after your first missed period to test with he urine pregnancy tests. Be sure to accurately follow the directions to get a valid result. Other causes of false negative tests are not using first urine of the morning and drinking too much water before testing. Hope this helps. ...Read more

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If my girlfriend take the pregnancy blood test to soon is it possible she can still get a negative result?

If my girlfriend take the pregnancy blood test to soon is it possible she can still get a negative result?

Takes 6-12 days: Yes, it takes 6-12 days for the test to become positive. She should wait at least one week after intercourse before doing a pregnancy test. If it is still negative after 2 weeks, you can rest assured she is not pregnant from any sexual encounter from at least 2 weeks prior. ...Read more

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Would I get accurate blood test pregnancy report if I am taking microgyno and suspect I am pregnant? It's urgent please help

Would I get accurate blood test pregnancy report if I am taking microgyno and suspect I am pregnant? It's urgent please help

Microgynon?: Urine or blood pregnancy tests are very accurate, regardless of whether a woman is on birth control pills or not. One can do the test about 3 weeks after sex (3 weeks after when conception could have occurred). The result almost always will be negative, if one is using her birth control pills properly. Rarely is a pregnancy test an urgent matter. ...Read more

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How soon after sex can I get a pregnancy blood test?

How soon after sex can I get a pregnancy blood test?

Depends on the cycle: Pregnancy test blood or urine only becomes positive after implantation, that is when fertilized egg has attached to the wall of uterus it takes 6to12 days after ovulation average time 9days
so if you are pregnant blood pregnancy test becomes positive 3to4 days after implantation or 10to11 days after fertilization and ovulation
it all depends what time during your menstrual cycle you have sex. ...Read more

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With a past pregnancy I couldn't get a positive test til 8wks, even blood test. Can that be something that happened in all my pregnancies?

With a past pregnancy I couldn't get a positive test til 8wks, even blood test. Can that be something that happened in all my pregnancies?

Trust the test: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. ...Read more