Me and my partner had sex on the sixth day of my period we were using condom and he did not finish inside me and pulled out before cumming, it slid off but he came outside and there was no semen inside , but I still took plan-b just to calm myself down after five days i bled for three days , after that incident I had protected intercourse three times and he never came inside me however the condom slipped in the same way once again but before he came so no semen went inside , still my period is late ten days I have done two pregnancy tests and both are negative