Reduced movements

Hi, need some advice! I’m 36 weeks pregnant and had an urgent scan today to check on baby due to reduced movements. When I’ve gone to triage yesterday the heartbeat was fine but now it’s the next day and she’s moving even less than the previous day. Her heartbeat was fine during the scan will they just say that the reduced movements are ok and leave it be? I’ve been there 3 times now with reduced movements but heart has been fine xx