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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Missed Period After First Protected Sexual Intercourse. Pregnancy Chances?

Hi, Umm im a 15 year old girl who just had sex for the first time the last week of may n we were safe he was wearin a condom n i havent had my period since then so im abit afraid n i havent told my parents or my friends so its been abit stressful so im askin would i be pregnant or have stds??? oh n my emails not workin in the moment
Sat, 14 Jul 2012
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OBGYN, Maternal and Fetal Medicine 's  Response
Hello,

Do you get regular cycles i.e. 28-35 day cycles? When was your last period? If you get regular cycles, 2 weeks from the expected day of menses will be most fertile period. It means sex during that period will lead to pregnancy. Condom does not give absolute safety as the earlier part of ejaculated semen also contains sperms and hence is capable of causing pregnancy. Please get a pregnancy test with early morning urine sample.

Take absolute care in future.
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OBGYN Dr. Sree Gouri SR's  Response
hi,
as there is around 2 to 3% failure rate for condoms and sometimes pre-ejaculate fluid can contain few spermatozoa, there is chance for pregnancy,
so you better once undergo blood test for pregnancy which will rule out the possibility,
if comes negative you can get investigated to find out other causes of missed periods like,
hormonal fluctuations as in poly cystic ovary disease,
changes in weight, stress and strain etc affecting hypothalamo-pituitary-ovarian axis etc.
take care.
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Missed Period After First Protected Sexual Intercourse. Pregnancy Chances?

Hello, Do you get regular cycles i.e. 28-35 day cycles? When was your last period? If you get regular cycles, 2 weeks from the expected day of menses will be most fertile period. It means sex during that period will lead to pregnancy. Condom does not give absolute safety as the earlier part of ejaculated semen also contains sperms and hence is capable of causing pregnancy. Please get a pregnancy test with early morning urine sample. Take absolute care in future.