HELP how do you stop sleeping on your back?!?

I’m 20 weeks right now so it’s not like third trimester but for WEEK I’ve been trying to train myself to sleep on my side. I was a side sleeper most of my life until recent years so I didn’t think it would be hard. But no I have gotten small wedges for either side of me I’ve gotten the big traditional pregnancy pillow nothing is working I still end up on my back!! Does it get more natural as you get bigger ?? I don’t have a huge bump yet. But I don’t want to hurt the baby or me by sleeping in my back 😭