maybe ur baby's high up on right side I know my baby likes my left side but u could call labor and delivery at our local hospital to be safe hope everything's ok!

It only happens to my right side tho and I haven't found one yet but thank you @nikki11st

yes very normal baby's taking up space ur lungs use to have I can't even lay on my back anymore because I feel suffocated lol if u want bring it up at ur next apt tho