I had sex on Dec. 23rd, the 13th day of my cycle. We used a condom but he went in again after that and said he felt some come out. I got a plan B pill that night and took it. I have taken plan B before and never really had an symptoms other that just being moody. I now have 6 days until my period, the 22nd day of my cycle? For the past two days I've had light brown discharge and light cramps. Might I be pregnant or is it probably just a side effect of the pill? I plan on testing if I am even one day late.