First month TTC after loss

We lost our angel baby on 10/03 went in for 13 week scan and found out our baby had no heartbeat . Stopped growing at 11 weeks 4 days . Had surgery on 10/05. I’m currently on my first period after our loss . My Dr said we can try again in December . Wanted us to wait two cycles . I’m so excited and so nervous . Going to take my OPKs this month to see how my body is doing since everything . How long did it take you get a BFP after a loss ? I really want our rainbow baby but I’m so terrified now . I don’t ever want to go through that again .