Am I pregnant?!?!

Okay so here is the deal…i was on birth control for 3 months and on Jan. 6 I accidently dropped that day’s pill somewhere on the floor, and I couldn’t find it. So I just took the next day’s pill and i figured everything would be okay. That night my boyfriend had sex and we didn’t use a condom. Well, the very next morning I got my period almost a week early! and that has never happened before. I continued to take the pill until I finished that pack. I had my period for 9 days, and I had the worst cramps of my life. My period is usually never that heavy or long.

I went off the pill after that pack ran out, becuase I wanted to get my period regulated again. Two weeks after, on the weekend of Jan 16, 2007, my boyfriend and I had sex again, and we made sure that we used condoms each time. Well, I calculated to see when I should have gotten my period based on the last time i got it, and i was supose to get it Feb 4th, but it hasn’t started yet. I’m started to get a little worried b.c I feel dizzy and I have headaches all the time (but I just got a new contact prescription, so i’m not sure if its that), i’m tired, and my breasts are kinda sore (not badly though), and my nipples seem to be "hard" all the time. I don’t really feel too sick, just ligt headed and dizzy. Help!