Previous stomach sleeper/can’t sleep any way

It’s currently 4am in Cali. I’m tired, I’m only 8w+3 but I can not sleep on my stomach anymore. Too much pressure on my uterus and it’s uncomfortable. I have only ever slept on my stomach, I don’t know any other way. I’m trying to sleep on my side but it is also not comfortable and I can not fall asleep. Sleeping on my back is a no go as I have back problems due to my large breasts which make me feel suffocated as I lay on my back and my back hurts too bad. What do I do???