Hopefully not pregnancy but... - Sexual Health - Teens Message Board

kramhill · 01-01-2007, 07:43 PM

My girlfriend and I recently experimented with sex for the first time. It was very brief, (we did not use a condom. I know - I will next time) and I pulled out before ejaculation (I know it's an iffy way to do it the first time). She is on birth control for period regulation purposes. She took her first non-hormone pill of the cycle the morning of the day we had sex. Under these circumstances how likely is it that she is pregnant. We are both inexperienced and slightly panicking (we have since decided to not engage in sexual intercourse anymore, since we both have decided that we're not ready). Her period is due in a couple days, so we'll know for sure, but the 2nd question (below) is something we would both like to know for future reference. Thanks for your input.

She's on Chryselle (containing estrogen and progestin). Would this pill affect the results of a pregnancy test (make it show positive if negative or vice versa?)

Thanks so much.

Thisby · 01-01-2007, 07:55 PM

I would say the chances are so remote they're not even worth worrying about.

kramhill · 01-02-2007, 03:45 AM

Thanks. Any other opinions about this or answers about the 2nd question?

Kathp · 01-03-2007, 05:51 AM

The chances of getting a false positive on a pregnancy test are nigh on impossible. The saying 'a line is line' is pretty accurate and if a pregnancy test is positive, then you are pregnant. (There are some very, very rare exceptions to this, like hormone injections etc, but these would not having an impact on your situation). Birth control pills will not effect a pregnancy test result.

It is however possible to get a false negative. If a pregnancy test isn't used correctly, too early or left too long before reading, these can all lead to a false negative.

To be honest, the chances of your gf being pregnant from what you've described are pretty unlikely, so I really wouldn't worry too much. But if she does want to test, she should wait until her period is late and read the test instructions very carefully to ensure an accurate result. Failing that, she could get her doctor to carry out a urine and/or blood test. But try not to worry, I think you'll be fine, just ensure you take appropriate precautions in future, then you won't have any unneccesary worry! Good luck.

hagios · 01-03-2007, 07:14 AM

Hello, kramill..

Her being pregnant is not probable, but certainly possible. Congratulations on deciding to abstain. It's the only form of birth control that will always work. I would also strongly suggest not taking the b/c pills until you know for sure that she isn't pregnant, as you don't have to be a rocket scientist to know that b/c and pregnancy don't mix.

And, as kathp said, there is no way you would get a false positive. A false negative maybe, but not a false positive.