Last month I had unprotected sex multiple times while ovulation.. 5 days later I had unprotected sex again multiple times but he cummed in me. I took next choice 5 days later and got my period on time.. i've had light cramping all month nausea etc but no sore breasts.. I'm extremely exhausted and irritable.. I have not received my period.. the other day for 3 days my right ovary was so sore it was so painful.. does anyone know what could possibly be going on?