My boyfriend and I had been thinking about having a baby and we finally decided to try...he wasn't wearing a condom, ejaculated inside me, and I waited a while before getting up. Well, the next morning, my period started,although it has been irregular these past few days, (only 3) out of the usual 7, stopping and starting again and again. I'm not sure if I am pregnant, but I don't see how I can't be...can someone please help?