PLS HELP!!!

Hey guys, a guy fingered me the beginning of October and I can’t remember if he touched his cum and put his finger back inside me. I got my period a week later after that, however, fast forward to now and my boobs are so sore and Ive been feeling so sick to my stomach. My back has also been killing me. Is it possible that I’m pregnant? Pls help me I’ve rlly been stressing out 😰