My period is a little off this month. I thought it was due 2/19 but I ovulated late so my period is scheduled according to glow for the 28th. I'm now 7dpo. I've been exhausted lately, the last few nights I can't sleepy at all, I just toss and turn, I've had hot flashes(never had them before), the other day the veins in my boobs are very prominent, they are tender, and I'm having some cramping here and there. What do you all think? PMS or pregnancy? I've taken a pregnancy test and its negative but I don't know if just tested too early.