Could I be pregnant?

Erica

My boyfriend and I use the withdrawal method because I have regular periods and can track my weeks for ovulation, but I think i could be pregnant because he did cum inside me at one point during my ovulation week. I hadn’t thought anything of it until I started waking up feeling very hot and uncomfortable and slightly queasy in the morning. My period is supposed to come in a few days but I experienced some very light spotting that stopped within an hour. Should I take a test or wait to see if I get my period?