first appointment today

i went to my first prenatal appointment today i'm 8 weeks and the doctor did not even try to listen the baby's heart because she said it's too early for that, not even a u/s!!!! i have to wait 3 more weeks for that ? i just wanna be sure that my baby is fine, i don't have morning sicknes or anything ? i'm sooo worry but she said it's normal don't feel a thing and there's nothing to be worrry about... i'm just trying to relax and be calm ?