Felt baby move at 15 weeks

So I decided to give my sides a slight rest and laid on my back for a couple minutes ( I know its a big no no) As I laid there I placed my hand on my belly and felt flutters, so I gently pressed my left side and I couldve sworn I felt movement. I removed my hand & did it a 2nd time, same thing. I havent been gaseous since I entered the 2nd trimester so Im a bit surprised & excited. I could be imagining things lol but Just wanted to get other mamas opinions and possibly shared experiences on this.