Hi, I had unprotected sex with my husband a day before my period. I started my period the following day but it was a lot lighter than it normally is. The week after my period I had slight nausea, severe cramping, and bloating. The following two weeks I had a lot of white discharge, more cramps, backaches, and my areolas started getting larger in diameter (??). This week I can't button my pants plus I'm still bloated and my nipples are darker and larger. I have taken 4 pregnancy tests (granted they were dollar store brand) and they have all turned negative. I've been taking the tests at night when I get home from work. Is there a chance I am pregnant? Or am I just going crazy..