Take on baby sleeping on stomach?

Elizabeth • Kyro & Kruz 💙 coming soon

So I’m at my mothers in law for a couple of days and my boys are 2 weeks. She puts one on his stomach and I look at her like, na sis flip him.

From my understanding, laying on the stomach this early can lead to SIDS. I told her the doctor told us to keep them on their back. She goes these new age people don’t know what they are talking about. I told my boyfriend to flip him back on his back. He’s been whining since.

I told him, he need to let her know just like I do so when we leave them alone this won’t be happening or she won’t be keeping them.

Am I wrong or?