1st ultrasound….anxiety help!!

This is our first pregnancy, we just had an ultrasound and got to see our baby for the first time! The ultrasound measured us at 11 weeks and one day… after we got home and I started thinking about it I never seen the arm closest to the probe move… is this normal? Did the ultrasound just not catch it? We seen both legs kick and the other arm wipe it’s eye area… and we also got a picture from the top of baby that shows all limbs are there… I just didn’t see it move and now I am anxious 😕

Anyone else have a healthy baby and this happened to them too?