I finished my period (which has been pretty regular for a very long time) on the 25th of November. A day or two later, my boyfriend and I had unprotected sex. From the 28th to the 30th of November, when I would wipe myself, I noticed there was odd brownish- pink discharge or blood. Once, I even found a blob of milky white discharge in my underwear. These were followed by uncomfortable cramps on my sides. I'm a bit worried that I could be pregnant, but then again, I shouldn't have ovulated yet. It's been a couple of days and the brownish- pink discharge/blood has stopped. Can anyone shed some light on this?