Might be a stupid question but I get like a squirming sensation down belly my belly button almost…

Might be a stupid question but I get like a squirming sensation down belly my belly button almost like my stomach growling or a gassy feeling but it's not! That's my baby moving right? Or am I going completely insane? Hahaha getting nervous as I get closer to my next appointment. Just need to hear that heartbeat again and I'll be fine.