A 22-year-old male asked:

My girfrend and i had unprotected sex and 19 of feb her period came normal at 24 of feb she is now late this mouth cuple of days pragnacy test negative ?

2 doctor answers4 doctors weighed in
Dr. Robert Kwok
Pediatrics 35 years experience
Tests are accurate: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon.
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Dr. Vijaya Sikand
41 years experience
Also...: If the pregnancy test is negative and you still do not have your period, I suggest you repeat the test about a week later. There are other causes of not having a normal period but it’s important to make sure that pregnancy is or is not the cause.
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Related questions

A 21-year-old female asked:
Two weeks ago, I performed oral sex then proceeded to kiss him, he then performed oral sex for me as well. What if precum is transferred from my mouth to his, then to my vagina? Will pregnancy occur? What's the odds I'm already a week late for period?
Dr. Gurmukh Singh
Pathology 51 years experience
While you are not at risk of pregnancy from this episode, your behavior is putting you at risk of pregnancy and STDS. Visit this site for guidance on ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
View all answers
A female asked:
Hi I have missed my Period and keep getting a head ache everyday I have done two pregnancy tests a week of each other negative?
Dr. Timothy Beck
Internal Medicine 22 years experience
Pregnancy?: If you are sexually active and having these symptoms, you may need a blood pregnancy test (quant B-hcg) to confirm that you are or not pregnant.
Created for people with ongoing healthcare needs but benefits everyone.
A 18-year-old female asked:
Im 13 days late. I had protected sex before my period starts. I took a pregnancy test last week came out negative. I do have period cramps here and there. I just wanna know why Im late. Is it because Im pregnant or its normal to be late?
Dr. Robert Kwok
Pediatrics 35 years experience
Hard to guess: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A home urine... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 16-year-old female asked:
I'm 11 days late for my period but 3 negative pregnancy tests, is this normal and should the pregnancy tests show up positive by now?
Dr. Gurmukh Singh
Pathology 51 years experience
Yes: If you did the test correctly, and it was negative at 11 days after missed period, you are very unlikely to be pregnant. If you repeat the test use fi... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 41-year-old female asked:
Unprotected sex 32 days ago and 3 pregnancy tests negative. No period or late. Would they be accurate now?
Dr. Gurmukh Singh
Pathology 51 years experience
Yes: If you did the tests correctly and the tests are negative 32 days after sex, you are not pregnant. There are other reasons for missing periods, such a... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 28, 2020

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