Should i be scared

Alexis

So i am 30 weeks pregnant with a little girl i found out today that shes measuring at 32 weeks the doctor said if i carry full term i will have a 8-10 lb baby, i wasnt scared about giving birth before but now i am my pre pregnancy weight was 105 lbs i am now 153 lbs i am only 5'3. If anyone else my size or smaller had a big baby like this could you please give me some advise kind of freaking out!