using my right hand and wipe it with towel using my left hand. i fingered my gf but i used my left hand, im not really sure if my left hand touches the semen but there is an interval before i finger her, atleast 5 minutes?. is she pregnant??

my gf and i played with each other. i cm first but after that i wiped it with a towel. i used my right hand for holding my penis and left hand for the towel. after that i fixed my self i think for 2 minutes and we watched movie. after a few minutes i decided to finger her i think after 5 minutes. i dont know if my hand is dry or not but i used my left hand for fingering her. i cant remember if my left hand touched my semen or not but im pretty sure that its wiped of.. her period is ireg but usually 28 days but last month it is 33.. will it go back to 28 days?? is she pregnant?