28 weeks movement

I’m 28 weeks and posterior placenta but I still rarely feel the baby move. This is nothing new- I’ve never really felt him move much. I’ll usually feel good movement at night and sometimes in the morning but usually only if I’m sitting down or laying down. I’ve tried so many different things (juice, cold water, sugary foods) and it doesn’t trigger any movement. I feel him move but typically it’s SO subtle. Anyone else have this? I had a check up ultrasound at about 23 weeks and everything was still good.