What should I do? Confused. Need help (TMI)

Ok .. Me last period was April 3rd..  I'm ttc #1 , one week after my "fertile window" I had a period like but it wasn't cause it only lasted for 2 days, I thought I could be pregnant it was red no clots.. Then a few days later I was in the shower and I noticed I white discharge from my nipples..(it starts clear- then it's white , like milk) .. I def thought I was pregnant then.. So I took a hpt. It was negative (april26) then I took another one two days ago.. (Bfn again) .. I don't have any symptoms other than that bleeding I have been moody too(but that happens every months ).. What should I do? ... My AF is due tomorrow..