Hcg level

So about 6 days before I expected my period I had a positive beta but very low so I think implantation didn’t happen very long before it but that level was 10 miu on 11/4. And my 2nd beta draw was 54 miu on 11/6. & today I just had my first appointment and it came back at 293.8 miu and by my last period puts me at like 4weeks1 day pregnant and edd is July 19th 2023.

I’m still worried so for peace of mind she said I can go back again Friday for another beta draw but she said it did more than double since my last draw compared to today but I am still very worried and concerned because I suffered from a miscarriage before. I also have my first ultrasound next Thursday.

Can someone please ease my mind that had their betas done early on?