Hcg rising fast

Em

So I am freaking out I miscarried in August at 10 weeks. Just found out we are expecting again. At 4 weeks 2 days my blood work showed hcg at 192 and today at 5 weeks 3 days it’s up to 4002..... is this too quickly it’s more then doubling no history of twins in the family. Please someone provide me some piece of mind 😭