TMI please help

Sidra • Married, it's been 3 years TTC since October 2016 had miscarriage of 4 months July 2017 and TTC for my rainbow baby 🌠 since September 2017 😔

Hi so this is how I am doing now spending my money on pregnancy tests and US but there was nothing no cysts too and I am going through baby fever and so desperately want my rainbow baby now I had MC in July and TTC since and today I am on CD63 yes 63 ! and I had brownish pinkish discharge from 19-23th January and I took pregnancy test yesterday and it was BFN. feeling nauseous and cramping almost daily Don't Know what's going on please help