had initmacy with ma gf on 9th feb .tht was her expected date of period i had anal sex with condom..but at start i was not wearing condom and had genital rubb with her vagina.. dont know if i had precum or not..i am scared ..after 2 days on 11th feb approx 58 hours after this i gave her unwanted 72 tab. she got her bleeding tht month like period after 7 days which was usual as for 8 days..on 18th feb..she got her next moth period on 20th march..which was also her regular like as of 8 days after that i had done hpt on 7th week after intimacy.it came negative ..i have seen online posts where many people wrote they are even pregnant after getting period.. i am confused plz help me .. i cannot understand..
i had not penetrated her vagina also..but precum and all things online are making me ill..