HCG LEVELS/ Is this normal?

Hi everyone!

Disclaimer, I know I won’t know anything for sure until I have an ultrasound but just wanting to hear anyone else’s experiences.

First HCG level at 4 weeks 2 day: 100

2nd: 296 at 4 weeks 6 days

Will have a third beta drawn Wednesday.

I’m nervous that these numbers seem low and didn’t double every two days. I had a missed miscarriage in July but never had blood drawn to check hcg levels.

With my daughter, my 3 betas were 352, 999, and 3,000 all two days apart.

Has anyone had an experience similar to mine and how did it turn out? I’m prepping myself for another miscarriage but hoping for the best. Thanks!