I have ribs removed on my left side and my daughter loves to be right in my side probably because she has more room there lol it gets uncomfortable especially at night because if I lay on the side she kicks and punches till I move lol I just find it funny tbh
My daughter loved being on my right side in my ribs! She was like that for the last I'd say 4-5 months of my pregnancy
My son loves my left side , it all depends on where they feel comfortable being . . .
Mine loves the right side and he definitely makes it uncomfortable at night -_-
Sorry :/ but most babies will choose a favorite side. My daughter like the right :/