What does "quickening" feel like?

Amy 🌈

This is my first pregnancy where I've made it to 16 weeks. I have been having some tickling feeling a little in my tummy, and once in a while It makes me want to scratch my belly. Is that "quickening"/the baby moving? For those who have been pregnant before, or know for sure that you're feeling your baby move, what did your first movements feel like?