Ttc after miscarriage

Tracy • 27 Mommy to Taya 💗 10-24-16 and Briggs💙 06-04-19. In love with my solider. 4 angel babies.
I had a miscarriage March of 2014 at 8 weeks. Been ttc since July 2014 and nothing. Im starting to give up hope. How long did it take others to conceive their rainbow baby