Maybe pregnant right after miscarriage?

Alexis

I had a miscarriage at 6 weeks on 9/23. We started having sex again a week after on 9/30. Tomorrow will be a month since the mc and my period has not shown up. I have had horrid lower back pain for about a week. We haven't been trying but not preventing either. I know you're supposed to be really fertile after a miscarriage so it's got me wondering🤔 Happy with the outcome either way, but wasn't fully mentally prepared to be pregnant this soon.