Last day he and his girl friend did oral Sex. And he erect semen into her side of a triangular part on vagina. Not over there, and within in five minutes she wash her that part using water. And now she is Virgin only, but the problem is now they having some doubt that, is there any chance to get pregnant? Hers last period was Feb 24 th and this happened in 25 th March. And she having also late period. Any chance for pregnant? Please reply.