I started my period on 4-20-09, it only lasted 3 days, which is not completely out of the norm for me, but it has been 37 days now since the first day of my period. My husband and I had sex on 4-30-09. I have taken a HPT but it came back negative and I was just wondering if I could be pregnant and I just took the HPT to soon? I have been more tired than my norm lately.