clomid bfn/provera question

Kayla • Hi, I`m Kayla! I`m 28 and my husband is 36. We have been TTC our first baby since July 2014.
Today is the end of my tww and I ended up with a bfn. July was my first round on clomid. Should I still wait a few days to start my provera to just be 100% sure I'm not pregnant? Feeling discouraged and just really sad. I went into this month feeling so positive like this is it! This is what is going to get us pregnant! I know it's only the first month but I only get 2 more tries. After 14 months of Ttc I just want to be able to have a baby.