?????????

Soo my doctor diagnosed me with PCOS about a year ago..I've been trying to conceive for about that time ..my doctor prescribed metformin for me to get my cycle back on track an hopefully ovulate. Glow predicted I'd ovulate around Vday ..took an ovulation test about a day after and the next and they looked positive ..soo I BD. Glow now predicted that I'd start my period today and my cycle is never on time ..but went to check and it looks as though my period has started but I'm not sure because..its a little light and I'm not cramping like I normally. I'm not sure what do you guys think could I be possibly be pregnant ??..i took a test but it was negative