I know this may seem like a stupid question, but I ALWAYS take precautions with my bf and use condoms, as well as being on the pill, but we did not use a condom the last time we had sex, (28th of Jan) and that Sunday before that I started my new pill pack, now my period is due next week and I'm hoping it comes and all is okay. I've been on tri sprintec for about a year now always take my pills everyday on time never missed one. Do I need to worry about pregnancy? I've been experiencing cramping and bloating this week, i don't know if its just period symptoms coming earlier than usual or is it something else?