I’m not sure if I’m crazy???

Okay I’m posing this anonymously because I’m almost embarrassed to ask this. This is my first baby.

I am 12 weeks 2 days (baby measured about 13 weeks at last US though) and I swear I can feel the baby moving? It’s low in my abdomen, almost pelvis, and it feels like butterflies in that area or like a goldfish bumping around.

It isn’t consistent and I can only notice it if I’m laying flat on my back. I’ve never felt anything like it.

I am shook right now and just wanna know if I’m crazy or if it’s possible?