period mia

Okay so I know I sound really stupid but I just get really paranoid. I am 22 just not experienced with it. so my fiance and I haven't had sex and we only mess around as far as hj, he fingers me, bj and he has rubbed his dick on like the very top of my pussy above my clit and never came while doing it. Also he has cummed on my boobs but I wipe it off right after with a paper towel. my period was suppose to be here Monday according to this app but my periods are irregular sometimes. Also my boobs don't hurt like they normally do and things like that before my period. they hurt but not as bad as normal. please no harsh comments. I know I'm stupid for asking but I just need to ease my mind.