Help... Super worried

Ka
So I'm on microgestin FE 1.5/30 and I usually skip the sugar pills when it's time for my period. This month for whatever reason, I decided to take them. I usually start my period on Saturday and it lasts until about Wednesday or Thursday, and I have had cramps. This time I hardly had cramps, and late Sunday I just sort of spotted (light pinkish) and have through today. My boyfriend and I have had sex without a condom this cycle and he pulls out. But is there a chance I could be pregnant?