I hate the fact she doesn't move as much as she used to. she moves enough to not worry me although…

I hate the fact she doesn't move as much as she used to. she moves enough to not worry me although some times I'm like if I don't feel her in half an hour I gotta call to get checked. but she used to constantly move but she is running out of room. I do not understand how there can be a 6+ pound baby in there