Doubling time?

My HCG on 9dpt was 171.9, 11 dpt was 338.2. I calculated it and it’s a 97% increase. Doctor is pleased, and is going to schedule a 5.5 week ultra sound. I’ve had two loses, one at 5 weeks and one at 8. I’m so nervous. During my second loss my HCG was lower, but doubling and I request extra blood tests due to being nervous. This time around my doctor is much more confident, numbers are higher, prog and est are perfect. So I shouldn’t worry, but of course I am. Would you ask for another beta?

Update: I just hit 14 weeks and everything is progressing beautifully 🥹 feeling so grateful.