Dear Sir i had sex with my gf on 26th april several times but not used any protection. And i did not ejaculated inside and after that she take unwanted 72, 48-60 hours after intercourse. At that time she is in the last date of her period and some times she bleeds during intercourse. She has normal periods before this in every 25th day of her cycle. But still her period not come yet she is very worried plz suggest me what to do.Is she pregnant?