My boyfriend rubbed his penis on my vagina on aug 6th. He had his condom on. We didn't have sex. There was a little semen on my thigh. I got my period on 8th August. It was a normal 5 days period. On September 1st we made out again. He rubbed his penis on my vagina but this time no condom. He ejaculated on my stomach. We didn't have sex. I took an ipill within 31 hours. My period is due on September 6th. What is the chance of pregnancy? Will my periods get delayed because of ipill?