Feeling Thumps🤔

Jae • Mommy of one beautiful little girl 💞💞

So I’m currently 17weeks + 3 days I’ll be 18 weeks on Monday and I’m feeling little soft thumps. I noticed they are below my belly button or sometimes right at my belly button. Could this be my baby 🥺 it makes me excited but idk if it’s the baby or gas. Did anyone experience thumps around this time? I experienced flutters when I was 15 and 16 weeks.