Sleeping position?😪

Bri • Momx2 👶🏽♂️💙 7/2020 Pregnant w/ #2 June2023💜♀️
So I'm having difficulty sleeping on my left side when sleeping. I have a bad left arm from a past wreck. So when I lay on it for a certain amount of time it gets sore and painful. Also when I'm sleep I sometimes end up on my stomach & my SO has go turn me back on my side lol😂. Is there anything I can do to solve this problem ? I'm 14 weeks 😊