Hello and Congrats mommy! it is totally normal. every mommy's experiences and symtoms are different. my morning sickness, vomitting and extreme food aversion kicked in only at week 7 all the way to week 12. if you don't have these, lucky you. they were nightmares!
true, in the 1st trimester baby is too small for you to feel any movement but rest assured that they are happily moving in there. like you, i worry too if baby growing okay and i always feel like the next gynae appt seems to take forever. stay positive and keep yourself healthy always! x