Ladies, how did yall get any sleep when your use to sleeping on nothing but your stomache. I stay too tired cause i toss and turn all night long..😢

Its not comfortable for me at all.. And my ob told me not to sleep on my stomache or back 😒
I am so sick of...
people saying "enjoy your quiet time now", or "get your sleep while you can".
I keep seeing posts about not sleeping on your right side but to sleep on your left??? I am wayyyy more comfortable and use to my right then my left...I don't understand why I shouldn't be???
Yesterday I went out with my boyfriend went to watch a movie, me and him don't live together yet. but point is yesterday when he was dropping me off his like sleep over at my house witch the mom and dad lives. I said no,
his response was why is everyone deciding or making choices for you and their going to do the same with the baby, when I know that's not true. what he thinks is that my mom tells me not to sleep over. So he left all mad. and I felt in my heart that he went on and cheated on me...
I heard it’s bad to sleep on your back while prego is that true?