confused?

I found out I was pregnant 11/28/16 confirmed by blood I had a miscarriage starting 12/6/16. Complete by 12/18/16. Took Pt on 12/20 + 12/22 + I started having sex again 12/24. 12/31 I did another pregnancy test and it was positive since then. 12/14 hcg was 88 could I in anyway be pregnant again I was only 4weeks3days