Me and my girlfriend recently had intercourse , she almost having mc bleeding by 3rd-4th of every month so we had our play during end of the last month ( safe period according to us) but as the date passed by now , still thers no sign of any bleeding ,even she had bad tummyache with vomiting ( she travelled alot during this 2-3 days so i assured her about bad water , food poisoning probability) but now even am getting scared , is there any probability of getting preg? She even suffer from problem of uneven mc