I had unprotected sex for the first time on June 28th, my boyfriend claims to have not cum in me but I am very paranoid so I took the pill June 1st at 70 hours. A week after I started bleeding and I've been bleeding for four days already but it's not that heavy I could use one pad for the whole day. I'm supposed to get my period the 18th, please help so I can get rid of this paranoia