Wish I knew what my body was doing..

I am on cd40 today 😧 this is the longest cycle I have had. Took 3 pregnancy tests and they all came out negative. My cycles are usually 29-39 days long.. went to the bathroom today and wiped a bit of brown and thought for sure af made her apperance. But as soon as i wiped it, I had nothing more.. just very minimal cramping on and off. Nothing concerning.. so tired of this when I am trying to conceive again.. called my obgyn today and just waiting on a call back to see what my doctor wants to do..