Worried

I have bee. Worried this past week. I have had migraines , headaches, back aches, slight cramping, really Moody and irritable, no spottimg , cm check I have done they are always super light. My sex drive is down which isn't normal. I'm not stressed out. Just the opposite. Last night and this morning have been nothing but naseua and headaches. I'm in my 3 rd day of my ovulation week and I had unprotected sex may 12th but had my period a week after that. Any insights?