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Doctor insights on: How Long From Having Sex Positive Pregnancy Test

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Had sex a wk before period and got a positive pregnancy test 2 weeks after. Is that possible? Or could pregnancy hav happen before that intercourse?

Had sex a wk before period and got a positive pregnancy test 2 weeks after. Is that possible? Or could pregnancy hav happen before that intercourse?

Maybe. Maybe not.: If already pregnant, that would mean the "period" was not a real menstrual period, because having a real menstrual period clears out the uterus... So having a real menstrual period means not pregnant at that time. ...Read more

Dr. Patricia Foster
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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Can implantation occur a little less than 48 hours after sex? Positive pregnancy test less than 48 hrs after intercourse as well.

Can implantation occur a little less than 48 hours after sex? Positive pregnancy test less than 48 hrs after intercourse as well.

Anatomy: Nope. Absolutely not. First: the sperm have to swim through the cervix, through the uterus, out the fallopian tube and find an ovulated egg. This takes more than 48 hours. Second an impregnated egg does not have any connection to the mothers body for over one week after impregnation and even then does not produce enough hormone for the mother's blood to be carrying it. It is impossible to test. ...Read more

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Is it possible to get a positive pregnancy test result 7 days after sex? I did, but I was having intercourse previously with someone else.

Is it possible to get a positive pregnancy test result 7 days after sex? I did, but I was having intercourse previously with someone else.

Pregnancy?: It sounds like you are leading an exciting life. It also is potentially going to lead to some dna testing if in fact you are pregnant. To answer your question seven days is a bit too soon to diagnose pregnancy using a home pregnancy test or even a standard blood pregnancy test. Would be likely that you conceived with your first partner. ...Read more

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Positive pregnancy test after 5 days of intercourse or from prior intercourse session?

Positive pregnancy test after 5 days of intercourse or from prior intercourse session?

Likely from prior: Most home urine pregnancy tests are sensitive enough to detect HCG levels about 2 wks post-conception. HCG levels double about every 2 days, but these levels vary from woman to woman, and what time of day the test is performed (early morning is best), so the test it may turn positive earlier for some women. It is more likely that your test was positive from prior sex. ...Read more

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Had a positive pregnancy test april 11 afternoon. Could it be possible it from intercourse of april 4th??

Had a positive pregnancy test april 11 afternoon. Could it be possible it from intercourse of april 4th??

The Math Of Nature: Sounds like you are trying to plan with the accuracy of NASA! The urine pregnancy test can start to be positive about a week after the egg implants in the uterus (4-5 days if you're lucky, or unlucky- as the case may be), which will happen maybe 6-12 days after fertilization. So the answer to your question is "unlikely." But, as with anything in this wild and wacky world, not impossible. ...Read more

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So is it possible to have a positive pregnancy test from just after five days of one intercourse or did it have to happen prior?

So is it possible to have a positive pregnancy test from just after five days of one intercourse or did it have to happen prior?

If ONE intercourse..: It makes no difference (doesn't matter) when the test turns positive if there was only one intercourse. With a positive preg. Test and one intercourse, it happened... Regardless if whether it was 1 day, 5 days, or 15 days after that one intercourse, the positive test happened. If there was more than 1 intercourse, then look earlier, as a preg. Test almost always takes over 5 days to be positive. ...Read more

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Positive pregnancy test 5 days after intercourse?

Positive pregnancy test 5 days after intercourse?

Pregnant: Possible, but more likely earlier sexual encounter caused this pregnancy. ...Read more

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Can you get a positive pregnancy test just 6 days after intercourse?

Can you get a positive pregnancy test just 6 days after intercourse?

Unlikely: That would be highly unusual. Conception usually occurs one to five days after intercourse and then the fetus has to grow to a point where it is sharing blood with the mother's body. ...Read more

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Is 2 weeks after intercourse enough time for positive pregnancy test?

Is 2 weeks after intercourse enough time for positive pregnancy test?

Yes: The pregnancy test becomes positive by about 10 days after conception. 2 weeks is enough time for the test to become positive. ...Read more

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I had intercourse 5 days before I had a POSITIVE pregnancy test, is this the possible day I conceived?

I had intercourse 5 days before I had a POSITIVE pregnancy test, is this the possible day I conceived?

Tough to: Believe the events from five days prior led to positive test. It's possible. But I wouldn't bank on this day of conception ...Read more

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LMP July 30. Intercourse btwn Aug 12-19 and again the 27 of Aug. Positive pregnancy test either 31st of Aug or 1st of Sept. When did I get pregnant?

LMP July 30. Intercourse btwn Aug 12-19 and again the 27 of Aug. Positive pregnancy test either 31st of Aug or 1st of Sept. When did I get pregnant?

The first option: Sex during the second option could not have caused a pregnancy that could possibly be picked up by a pregnancy test four days later. Absolutely impossible. The father of your child was the man from early to mid August. ...Read more

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Can implantation happen 3 days after intercourse? And a positive pregnancy test at 5 days?

Asked and answered: Your question now asked over a dozen times. It has been graciously answered for free. It is highly offensive to keep asking the same question of us and to keep expecting free service from the heroes here donating their time. Please move on. ...Read more

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If you have sexual intercourse on nov 16 and find out your pregnant when will u show a positive pregnancy test?

If you have sexual intercourse on nov 16 and find out your pregnant when will u show a positive pregnancy test?

10-14 days after a: Missed period. Home pregnancy tests start turning positive about 10 days after a missed period. Use first morning urine and follow the instructions carefully. You may see your doctor for a more sensitive blood test three days after the missed period. ...Read more

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Can a pregnancy test positive through a blood test just 5 days after intercourse?

Can a pregnancy test positive through a blood test just 5 days after intercourse?

Not likely: 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. ...Read more

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Hi it's been over 8 weeks since my loss. I have had no intercourse however I am showing a positive pregnancy test and still have no period.

Hi it's been over 8 weeks since my loss. I have had no intercourse however I am showing a positive pregnancy test and still have no period.

ELEVATED BHCG S/P SAB: Have prompt follow up with OB. You may have retained products of conception. They need to do a pelvic US and follow the BHCG. You may need a D/C. Get Prompt OB follow up. If the BHCG remains elevated you may need a D&C to prevent a Molar Pregnancy. ...Read more

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Can you explain how I can have a positive pregnancy test 5 days after intercourse and using morning after pill?

Can you explain how I can have a positive pregnancy test 5 days after intercourse and using morning after pill?

Already pregnant: Probably you were already pregnant. Otherwise the test couldn't be positive that quickly. The pregnancy has to be at least 2-3 weeks along for a normal home pregnancy test to be positive. Talk to your doc about your options or reply here. ...Read more

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Positive pregnancy test the day after intercourse then hCG levels were 600ml/iu 2 days later? Pregnancy this soon?

Positive pregnancy test the day after intercourse then hCG levels were 600ml/iu 2 days later? Pregnancy this soon?

Yes: Although the pregnancy is more likely due to a different episode of intercourse than the one the day before taking the test. Alternatively, considerably much less likely, you could have another source of HCG produced in response to another (non-pregnancy) medical condition. ...Read more

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I got 3 positive pregnancy test but the last time I had intercourse was on november 15 and I had my period all this moths except this one march.

I got 3 positive pregnancy test but the last time I had intercourse was on november 15 and I had my period all this moths except this one march.

Newly Pregnant: Again not sure why this question warrants asking a dozen times. If you only missed one period this is likely a new pregnancy. Or the tests are inaccurate. Or there is much more to this story. I would bet an ultrasound will tell you a lot of real information. It is time to get to the ob's office urgently. ...Read more

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Positive pregnancy test after IVF FET is it alright to have intercourse after the 2ww? Will this cause miscarriage or harm the embryo in anyway?

Positive pregnancy test after IVF FET is it alright to have intercourse after the 2ww? Will this cause miscarriage or harm the embryo in anyway?

OK: Most doctors routinely recommend not to simply because if the pregnancy does not progress well you will think sex affected it. But it is actually entirely safe and ok. ...Read more

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How long after sex does the implantation process occur? Could the egg already have implanted 3-4 days after sex to get a positive pregnancy test day 5?

How long after sex does the implantation process occur? Could the egg already have implanted 3-4 days after sex to get a positive pregnancy test day 5?

Usually day 6: Humans are not as predictable as we would like so ovulation may have happened early or implantation maybe could have occurred early. I would not discount the possibility of an early pregnancy ...Read more

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How many days after intercourse can a pregnancy test be accurate? I am wondering how many days after intercourse I can take a pregnancy test. My periods are highly irregular so waiting to miss one really doesn't give me any answers. The last 4-5 days I hav

How many days after intercourse can a pregnancy test be accurate? I am wondering how many days after intercourse I can take a pregnancy test. My periods are highly irregular so waiting to miss one really doesn't give me any answers. The last 4-5 days I hav

It: It would be reasonable to take a pregnancy test now based on your symptoms. It does make it hard when you have very irregular periods as you note. If your test is negative, but you still don't get your period, wait two days then re-take the test. If it is still negative you could see your doctor and possibly get a blood pregnancy test, which is more accurate. In general, the pregnancy test can become positive 10 days after pregnancy though every womans hormone level of pregnancy (HCG) can be a little different at different stages of the pregnancy. ...Read more

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My girlfriend and I had sex on sun 2-5-12. I didn't cum inside her, she took a pregnancy test the following day she got a positive on the test just one day after we had intercourse.

My girlfriend and I had sex on sun 2-5-12. I didn't cum inside her, she took a pregnancy test the following day she got a positive on the test just one day after we had intercourse.

Unless: Unless the pregnancy test was read incorrectly, or it is a false positive, then there could be an explanation. A pregnancy test should not come up positive 24 hours after sex. However, the woman may have become pregnant at a previous time. Even if you did not ejaculate inside of her, just the presence of pre-ejaculate could lead to pregnancy. ...Read more

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My girlfriend and I had sex on sun 2-5-12. I didn't cum inside her, she took a pregnancy test the following day she got a positive on the test just one day after we had intercourse.

You: You haven't really asked a aquestion, but I assume you're wondering whether a urine pregnancy test would be positive one day after sex. The answer is that a pregnancy would not be detectable that early, so a positive pregnancy test is either a false positive (that is, the test gave an inaccurate result) or the pregnancy is further along than one day.

It sounds like you are using the withdrawal method for birth control. Although that's better than nothing, it absolutely does not protect against pregnancy. So if that's been your routine, it could certainly be that a prior sexual encounter between you and your girlfriend--even if you did not ejaculate--could absolutely have gotten her pregnant and could be the cause of the positive result. ...Read more

Sexual Intercourse (Definition)

Couples often worry about having sex during pregnancy. They may be afraid that having sex could cause a miscarriage or harm the baby. It is best to talk to your doctor or nurse midwife about your specific situation to make sure you are considered at low risk for complications such a ...Read more


Dr. Stephen Sudler
482 Doctors shared insights

Pregnancy Test (Definition)

A pregnancy test measures a hormone called human chorionic gonadotropin (HCG). HCG is a hormone produced during pregnancy. It appears in the blood and urine of pregnant women as early as ...Read more