Actually I had my period on 28,dec,2010 and the next on Feb 2nd.I had Unprotected sex on Feb26th and took pill within 4hrs.On 27th again I had sex.I had a little brown discharge on 28th Feb.I didn't get my period till now.I took a HPT urine HCG on march 10th and MArch 15th which are negative.I am not getting my period.I am so tensed .Am I pregnant?I am experiencing breast tenderness (not all the time,only thrice or four times a day which lasts for few minutes 2 or 3),Please help me.what should I do?

What pill did you take? Your contraception pill or Plan B pill? It sounds like your periods aren't very regular. Stress can also play a big role in your body's reactions. I'm also confused, you said that you didn't get your period until NOW, then you said you aren't getting your period. Are you on your period or no?

Thank you for giving Reply.Its a emergency contraceptive pill(mifeprostone 10mg x1:chinese use this)Its a pill that should be taken within 72hrs of intercourse.I mean I didn't get my period till now,which was expected to be 1st week of march.I just had a small amount of brown discharge after taking the pill (Plan B).Is there any chance that I could be pregnant?

Unlikely if you're on your period now and getting negative test results. Plan b is basically a huge dose of hormones. So it should be expected that your cycle will be thrown off.

If you're still not sure, you need to speak with your doctor. We can only guess online, only a doctor who can examine you and/or run tests can confirm.

I agree, if you took Plan B are having light spotting and have negative test results its unlikely that you are pregnant. Wasn't that the point of taking that emergency contraception? Getting on a regular contraception method will make periods more predictable and prevent this confusion and stress over possible pregnancies.

It's a emergency Contraception pill(just like ipill which should be taken within 72hrs of intercourse).After taking it I had a little quantity of brown discharge after 2days.I am not getting my periods of this month March(which are supposed to be in march 1st week.).Then I took pregnancy test HPT(Urine HCG tests :1st one with 25mUI and second with 10mUI) on March 10th and March 15th,which showed a negative result.What should I do?Should I take a pregnancy test again or wait for my period to come?Will I be pregnant?Please help me

You took emergency contraception. The success rate of it is 89-99% based on what I've read. I don't think you will become pregnant. Its basically a very very strong birth control pill that works before pregnancy occurs. I would wait for your period to arrive and in the mean time schedule an appointment to get on regular contraception. Below is a link for you to read up for yourself: Birth Control - Emergency Contraception