My period was supposed to start 12 days ago. The 1st day of my last period was 44 days ago! My cycles have never gone more than 34 days. BUT I took a test 3 days ago=negative, I took a different test this morning=negative. I have been having slight nausea (no vomiting) yesterday and today only after I ate lunch (at different times, my usual, nothing out of the ordinary food wise). Can anyone provide any explanation as to what is going on? Picture displays approx. Ovulation day and only possible day of conception as far as my brain can tell. TIA