Help so confused

Ok so i take provera for 2 months like i was told well,this month I was gun have it come,naturally well it never had I am already 2 weeks late well,the other day I spotted for 4 days not even enough for a panty liner so I,thought my period was coming no just spotting and still no period..well I took a test a couple days ago and yesterday all I keep getting are evap lines I'm confused so confused I have been ttc for 3 years I feel,there's no hope and I'm having this discharge? I woke up this morning with this