I had sex many times 5-2 days before my ovulation. Yesterday was 7 days past ovulation and I woke up sweaty and nauseaus and again today. As well at lunch I found I could smell the cheese and ranch dressing overly strong. My boobs don't hurt but feel a bit heavy when bent over over going up and down stairs. I did a pregnancy test today and it was negative but I still have 6 days before my period is due, please help I feel so dumb...