I've been on the pill for going on 2 months. I'm suppose to start my period tomorrow its normally on time. I've been spotting for the last 5 going on 6 days I was have little cramps the first 2 days. Normally about a week before my period I get tender breasts, horrible PMS, and bloating. All I have is spotting my breasts look about a cup size bigger and I've gained 9 pounds since I've started the pill. I read that is you have diarrhea at least 24 hours after taking the pill it can weaken it. I'd that is true I'm worried. Please help