I had sex about a week ago for the first time. We did use a condom and i was on Birth control but as he was coming out of me the condom slipped off and I dont think he pinched the tip. I bleed really light for a couple of days then i came on my period a week earlier than i was suppose too??? Im really confused cause my cycle was completely off?? That means my Birth Control wasnt even working??? Am i over reacting im so scared!