Should I be worried or..?

Sarah • Sebastian Cormier ❤️👶🏼02•22•16👶🏼❤️ Taken 🔒💍11•17•14💍🔒
I am 16 and a first time mother, it doesn't matter if you're 35 or 16 I'm sure every first time mother experienced every worry out there when it came to their little one. So please don't be rude or hate on me for this. My son (4 months yesterday) has recently realized that he can roll! But he hasn't figured out how to roll from his stomach to his back yet, just side to side at the moment. I just went to check on him and he had rolled onto his stomach. If I hadn't been up he might have been sleeping like that all night, should I be doing something to prevent this from happening again. Should I just roll him back on his back when I check on him if he's like this again? I don't know what to do. Someone with a little more insight give me a little advice please!