milestones for 5 months.

milestones for 5 months.

My wonderful dd is 5 months today. :) she is babbling a lot and she is trying to roll over. She can pull herself forward on tummy time. She has been trying to crawl but hasn't accomplished getting her knees up under her yet. She can sit up on her bottom for about 5 mins before she starts leaning to one side, and she can hold her bottle by herself (yes,really)..Is she behind on any milestones for 5 months? She was 9 weeks early and my sisters MIL keeps telling me that she is going to be behind in everything bc she was early... she enrolled her son in a special program so he don't actually have to pass school to pass.. I'm not sure what its called. She said that bc he's a preemie (36weeker) that he's considered autistic??? I was a 34weeker and I didn't have any issues in school and had to pass or I was getting held back. Has she reached any milestones for 5 months? What else should she being doing at 5 months? I know rolling is behind but she is working on that and is coming along nicely. TIA...