Could i be pregnant after a miscarriage?

Br

Hi I had a miscarriage on the 6th of December since then me and my husband have been having unprotected sex.

My period hasn't shown back up and I'm not sure how long it takes for it to come back honestly.

I took a pregnancy test 3 days ago and it came back negative. But I have been having some pregnancy symptoms like bring overly tired all the time nauseous a few times and my boobs have grown slightly. (My husband told me)

So could I be pregnant this soon after a miscarriage