Okay, so I have had my period for 2 years and I am regular. My boyfriend fingered me about a week before my period was coming. He says he did not ejaculate or pre-ejaculate on his fingers or anything. Also, I have to get surgery next month and I just found that out, I’ve been very worried about that. My last period was January 31-February 6, 2018. It is now March 13, and I still haven’t gotten my period. I have missed the whole thing. Is it because I am stressed? Or could I be pregnant?