Okay, so I'm on the pill and I'm currently, in my case, on the white pills which means the week I'm supposed to start my period. It's almost Thursday and still haven't shown any signs of my period expect slight cramps. When me and my boyfriend have sex we never use a condom and he does come inside of me. Could I be pregnant? Should I take a pregnancy test? I'm really worried. I know I should use protection or a back up method but I still don't.