U.S. doctors online nowAsk doctors free
Orlando, FL
A female asked:

Hi i haven't had a period in 37 days i have unprotected sex and i forgot to take my birth control i've took five pregnancy test and they all have frin?

1 doctor answer1 doctor 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.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 25-year-old female asked:
Got my birth control takin out Thursday, & I didn't wait for my first period to have sex, for the first time Sat. when can I take a pregnacy test?
Dr. James Ferguson
Pediatrics 48 years experience
Test anytime: If you are asking when might it be a realistic time for it to be positive you need to wait. They estimate a 6 month trial before establishing a desire... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 22-year-old female asked:
On birth control pill, lo loestrin fe. how long should i wait after unprotected sex to take pregancy test?
Dr. Gurmukh Singh
Pathology 51 years experience
3 weeks: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about 2-3 weeks for the embryo to... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 22-year-old female asked:
my boyfriend came in me. how long do I wait to take a pregnancy test? I'm on birth control. I take the depo shot. I haven't got my period at all.
Dr. Gurmukh Singh
Pathology 51 years experience
About three weeks: You may do a pregnancy test in about three weeks. Use first morning urine and follow the instructions for the test carefully. Practice safe sex. Get H... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Brian Nguyen
Obstetrics and Gynecology 13 years experience
As long as you're getting your depo shot every three months, you shouldn't be able to get pregnant. It's a very effective method, but if you're not getting the injection on time then I'd be worried. It's okay to not get periods with the depo provera, but if you're feeling nauseous or you feel your breasts getting tender, then you could well be pregnant.
Apr 28, 2015
A 20-year-old female asked:
Took pregnancy test in the morning but still negative, 3 days late on period and off birth control . When should I take it?
Dr. Gurmukh Singh
Pathology 51 years experience
In 4-5 days: You may repeat the pregnancy test in 4-5 days, unless you get a period by then. Use first morning urine and follow the instructions for the test caref... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 17-year-old female asked:
How long after I start birth control patches again after my period does it take for me to be protected from pregnancy? Had unprotected sex 2 days in
Dr. James Ferguson
Pediatrics 48 years experience
May be pregnant: BC works by fooling your body into believing you are pregnant and preventing release of eggs. It does not help prevent release until it builds up in y... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jul 9, 2018

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.