My last period was 29th september. Then on 5th day of my period I have had intercourse on 3rd october. Then after 60 hours I took I pill on 6th october. Then after 6daus of taking I pill I have had some bleeding for 3 days on 12th october. Then after some days I did intercourse not vaginal but anal. And sperm was on my belly and then I stood sperm came to leg and near vagina then I washed with water. I have asked doctors they said their is no chance sperm enter to vagina not take I pill again. Then on this 29th october I missed my period. And today tested with prega news after 12 days of my missed period it's negative. And tested several times and it is negative. Can I be sure now?