Input would be appreciated!!!

Okay ladies. I am two day late on my period. I have no signs of aunt flo other then tender breast. I had taken a test yesterday and today. Same result. Was positive at first then went to negative. Don't know what to think. My question is it normal to have a lot of discharge? Like I keep thinking it's aunt flo and it's not. It kind of feels like I am peeing myself? Help!!!!!