Baby's First Movement?

Cheyna • 33 years old. 🤷🏼‍♀️ Married to my best friend since 2012. 💍 Charlie was born in March 2016. 👦🏼💙 Kennedy was born September 2021 👶🏼💜
I think I just felt my baby move for the first time (I'm 17 weeks tomorrow, first baby)... Just yesterday I realized I could feel my stomach behind/under my belly button is getting really hard, because that's where my uterus is now (as the models suggest lol). And this morning I was laying in bed and it felt like a tiny bubble popped inside my uterus, or like a little flick... Could it be?? What did your very first movements feel like?