No one will answer me.. advice please?

blueeyesss

I was prescribed Provera for amenorrhea after discontinuing birth control. I got my bleed after taking the Provera. That was close to 4 weeks ago and I did ovulate between the 18th-20th, I know because I use OPK’s. So when should I expect to bleed again? When should I take a pregnancy test? Anyone have personal experience or advice? Thank you!