how long does it take you to get pregnant again after miscarriage?

Teri
I just had a miscarriage at 5w a month ago, still spotting from it because there was some tissue left. My Dr said after my hcg goes to 0, we can try again. I took a pregnancy test today and it was super faint, I think this is the first time in my life that I hope for a negative pregnancy test that much. Anyway, I wonder how long does it take you to get pregnant again after loss? We want to try again after my hcg goes to 0.