Hi anyone can help me

Everyday i always feel cramps in my left side stomach since august 22 till now and my next period is sept 4 based on the calendar.

i have foreplay last august 16 2019 like finger and oral , im realy freaking out because he touch his penis while a give a blowjob and its wet because of my saliva may be he have an precum on that time while i bjs her after that he fingered me.but he did not put her penis inside me or he did not cum near my private part

May be im preganant or not beacause im realy freaking out i feel cramps symtoms i dont know if this is implantation or my period is coming thanks

I dont know if fingering with semen mixed my saliva is lead to pregnancy . Anyone can help ?