33 1/2 weeks light movement

I am 33 weeks with my third baby and this baby has been the most active of all 3 of my daughters. Her movements are frequent and generally pretty strong. Especially in the evenings. This morning, though, I have not felt her much. And the movements I have felt have been very light. My mom will pick up my two daughters around 2:00 (it’s currently 12:30) so I can go in to get checked out. Anyone else have decreased movement? I used my Doppler a couple hours ago and her heartbeat is consistent with where it’s been, 140’s, but her change in movement is making me nervous.