I know in my specific case my son would not move at all during the day but at night time he would have dance parties in my stomach and made it very hard to sleep
The larger your baby gets the less room they have to move. I would not be worried unless the movement stops all together you can Also call the nurse on call at your local hospital they can answer prenatal questions if you have any concerns or your primary provider. I'm sure they can tell you what is normal for your specific case and maybe even do an ultrasound if