Good Morning A., You hit the nail on the head already sweety. All babies do things at different rates. With your sweet Angel being a preemie, I think she is doing Wonderfully. She is sitting Up, rolling some, watching things move by her. Awesome. Please don't stress over the walking yet. Our eldest walked around 13-14 months, our youngest walked at 8 1/2 months. I was NOT ready for the little guy to walk yet. Our Gr daughter (9)didn't really walk she went right to Running. Our carpet wasn't stretched correctly in the hallway so we had what we called Tia Speed bumps, they would only slow her down a little bit.
Austin (8) walked at 13 months, Asher (4 1/2) was almost a yr when he started walking. Corbin (4) Walked around 11 months, and Baby Zane (17 mo) Was 14 months. Zane is still a Weeble Waddler and he does fall down.. WOW I am Shocked I remembered all of that..*laughing*
Keep playing with her A., roll her if you want, keep doing tummy times where she reaches for toys etc.. She is doing things at her speed, and in my mind she is Doing Awesome.
God Bless you always, Your a Great mama to be concerned but Please do not stress it. Have fun and relax. Not to scare ya, there will be harder things down the road...lol So deep breath, exhale and smile a lot.
K. Nana of 5