Baby movement

Kelli

Not sure where to ask this just looking for advice. I’m 37 weeks pregnant with my 3rd. High risk pregnancy due to my first born being still born and my age. So I get monitored with weekly nsts and monthly growth ultrasounds. On Monday I thought my baby’s movement decreased so I went in and she passed her nst but only moved once during the whole test. And then come Friday she moved once during her ultrasound but the doctor said she looked perfect. It just seems unusual that her movements are slower now and less frequent but she’s passing everything. Last night it took me an hour to get 4 movements when it used to take me like 15 minutes to get 10 movements. I don’t know whether to go in again because I’m constantly worried or just accept that she’s slowing down (which I’ve always been told shouldn’t happen??) I’m just not sure what to do. Anyone else experience this?