Signs of autism

Hi everyone I have been racking my mind for months over my LO. She's 8 months and there's a few red signs I've noticed with her but, idk if I'm over analyzing things with her.

She sits up well unassisted, makes eye contact, smiles, follows you around the room with her eyes, passes things from hand to hand, she rolls from stomach to back,stands when assisted.

The things she worries me on:

Not crawling yet

Babbles once in a blue moon (mostly yells)

Doesnt pull herself up

Doesnt let strange people hold her

When the music was kind of loud she was tapping one of her ears (idk if it was loud and she was sensitive or she was tired because if was 10pm)

Doesnt roll from back to front

Am I paranoid or should I be worried? Someone please help ease my mind. 😣