Pregnancy after loss update

I posted yesterday in here (I have an update looking for opinions/thoughts?) : Based off of my LMP I should be 6w5d due to

pcos I take metformin and do ovulate later/have

long cycles from time to time I called my OB

today to schedule another blood draw and they

had me come in for an ultrasound instead, so far

my HCG levels are

11/14 57

11/16 155

11/23 3979

11/24 5923

The ultrasound felt fairly rushed we saw yolk sac

and gestational sac, not much was said to us the

tech did mention to the other tech in there that

the gestational sac was measuring at 5weeks and 1 day and that she saw something that she assumed

was baby but hard to see. we didn't get to see much”

My doctor called me back today they didn’t express much concern and had me do another HCG test today 11/29 and It came back at 14,589 the HCG calculator online says my doubling time is 87.66 hours? I’ll go Friday to repeat labs but won’t hear from the doctor again until tomorrow. I had a miscarriage in April so I am slightly worried, should I be concerned?