I had "sex" with my boyfriend but there was no ejaculation involved and we never completed the deed. In fact it only lasted about 2 minutes. After that happened I went to the bathroom and noticed I had a brown discharge. (this is all taking place around the normal time of my period, and my period has been very irregular for the past two or three mos) the discharge lasted for about 3 days and then stopped. I then had regular blood for about half a day and that stopped. Its now about 15 days later and I have the brown discharge again... im also more athelticly active than I have been in the past 8 months and have lost some weight.

Someone please help me.
Am I pregnant or is it just a really weird period?

It could be pregnancy, especially if you did not use protection. Even just for 2 minutes, or 2 seconds, or .2 seconds, pre-ejaculate (you will not know if this occurs during intercourse) may leak out, and it contains sperm. Wait until your period is due again and if it does not come, take a test. If you are getting bleeding when your period is not due, you should go to the doctor.