I am not sure if I am or not. I am on oral Ortho TriCyclen Lo which I have been taking for about two years. It's has always worked great for my husband and I. My cycle has always been very regulated on the pill, exactly 28 days. I always start on Thursday, almost to the hour exact. I was supposed to start Aug 21st, but I started cramping very intensely on Sat. the 16th and bleeding lightly. Then Sunday i started bleeding very heavily and cramping even worse. I had been very emotional for the week beforehand and my breasts had been slightly tender. I didn't even think I was pregnant until I started going over how'd I'd been feeling after the fact. I am not sure where to go with this. Is it better to go in to the Dr instead of chancing I'm ok? How long is an "ok" time to wait before going to the dr? Will I be safe if I go in this Friday (22nd)?