How soon can you end up pregnant again?!

Liz
Hi ladies! 
Was curious if anyone knows how soon you can get pregnant after a mc. I started my second miscarriage 12/21. The bleeding stopped 12/28. I also checked my hcg levels and they were down to a 12 on 12/28. Anyways I felt fine physically after the bleeding stopped so 1/1 my husband and I did the deed and I didn't think twice about it until now. I don't think you can get pregnant that quickly but I wondered if anyone knew how soon you could end up pregnant?! I of course want to try again as soon as we can! Hopefully we get our sticky rainbow baby soon 🙏🏻😊