Ttc after miscarriage

So my daughter is almost 7, she doesn’t know about the miscarriage I just had, we weren’t going to tell her until closer to 20 weeks.

I had a d&c; on the 19th due to a blighted ovum, my body was not realizing there was nothing viable. I’ve had minimal bleeding only a couple of days since then.

Has anyone conceived before AF came back? My fiancé and I aren’t using condoms, and have had sex once since the d&c.; Or how soon did you conceive?