calling all side sleepers...what are you using between your legs??

I'm 6 weeks post LTHR anterior approach and up until a week ago i've slept exclusively on my back with 2 thin pillows under my left leg.

Originally when i left the hospital they said I could either sleep on my back or side (non-operative) with a pillow in between my legs. I've tried regular pillows and i've tried the small knee pillow but neither feel good for longer than 10 minutes and when I move back to my back it hurts a LOT.

Do I just not have the right pillow support? If so, i'm curious what everyone else is using! Thanks!

*Edit* I'm now looking at the full body pregnancy pillows like this one if anyone has any reviews on them, i would appreciate it!!