I just want to know that, one had sex on 20 th sept just rub penis to vagina, her vagina was not wet then. But I gave her unwanted 72 within 12 hours, then 27 th he got period which is 2nd time in sept and previous was 14th sept .and now its 2nd november her periods didn't come yet. Amd today morning I have done prega news pregnancy test and it came negative. Is she pregnant ma'am please help ?they r both 21 and 18 years old. Clg student .help. Clarify the details plzz sir.