less kicking than normal

i’m now 30 weeks and for the past two days my baby hasn’t been moving as much as she use to. she still moves and always meets the 10 kicks in a hour of i kick count but during the day it’s hard to notice her moving unless i have my hand on my stomach and even then they’re little movements but then at night she seems to go crazy but they’re still not as strong kicks and movements. is this normal as you hit 30 weeks?