I agree with others, you will know when. But you still may wake up that way. You're baby is protected.
I still wake up and I am laying on my tummy. 😂 I try to not even though it's not uncomfortable yet I just feel like I am squishing baby.
When baby tells u no more i slept on my belly till i was about 18 weeks :)
You will know when you can't anymore... it becomes really uncomfortable!
Okay thank you my boyfriend always fuss at me for laying on my stomach but right now that's the most comfortable for me.
I slept that way until 25 weeks then baby said no more