Twins and movement!

Rocio
Hi! I'm 35+2 today, I've noticed that my boys are not moving as much or as intensely as they used to about a week ago. I go for fetal monitoring twice a week and every time everything has been good. I do my kick counts and I get the 10 within the time but I used to get them under 10 minutes, now it takes about 15.
Did you guys notice a difference in movement around this time in your pregnancy? I go for monitoring on Tuesday and was wondering if maybe I should go before? 
Also, I'm on bedrest and been on bedrest for two weeks now so I'm not very active at all, not sure if that has anything to do with it 😕