Im on Ortho Tri Cyclen Lo. I missed a few pills off and on all month due to stressful situations and lack of remembering. Completely unlike me. I think I missed one white but backed it up without sex. And then missed 2 light blue. My fiancee and I had unprotected sex a day after I forgot my pill. He did ejaculate in me and it had been 2-3 weeks since we had done it last so he probably was built up. I saw a little bit of blood from screwing up my pills so I put a tampon in due to not having any pads. Dumb! Anyways...I have been spotting from a little dark brown to heavier red off and on. Not like a normal period. Cramping which I dont normally do. Headaches (pretty common). (Dizzy). I am not due for my period until next week. What are my chances of being pregnant? I took the pills I was supposed to take the following days and have been on time ever since.