baby moving at 13 weeks??

Harmony 🍉 • 9.16.17💙 11.25.18💙
Hi y'all. So I'm currently 13 wks & 1 day. I have had a belly button piercing in the past and now it's starting to burn a little. I think it could be bc the baby bc I feel a weird feeling in my stomach. It's a feeling that's hard to describe. My mom says it's too soon bc this is my first one but idk. I've NEVER felt this feeling before!! Am I just going crazy? Honest opinions welcomed, but no cruel comments please