what do flutters/movement feel like? :)

kales

i am a FTM and i’ll be 17 weeks monday! i feel like i’m feeling baby move around just not sure if it’s not my muscles/uterus stretching or actually him wiggling around lol. it feels like slight pinches, nothing painful and i usually notice it when i’m sitting or laying! sometimes feels like what could be obvious flutters, just not sure!! 🥰