After a loss.

So on August 17th my husband and I got the news we lost our baby. I then passed the baby that following Sunday 19th. I bled for a few weeks then what I think was a normal period started on September 20th. I haven’t had another one since. Is this normal or could I possibly be pregnant already? There was only 1 night were I could have even gotten pregnant which was last Monday the 22nd. I’m scared to test, it’s been really rough on us losing out first baby.