I had what I believed to be a period on the 8th March (af was 2 days late) - it was different to my normal af but I still had bleeding for 5-6 days. However for the last ten days I am utterly exhausted, feeling nauseous and my boobs are so tender. I took a test last week which was negative. Is it all in my head and I am probably just coming down with something or could there be a chance the frer was wrong?