Greeting S.!
Like you, my twin girls, were born at 32 weeks gestation. And, like you I do not understand why they came so early. Their expected birth date was at 38 weeks. This is "normal" for twins by OB said. Their birthdates should have been around Christmas time.
Anyway, they were in the NICU for two weeks only. They were born small, but with no problems whatsoever. They did have to be on oxygen and a respirator just becasuse they were to tiny.
Believe me, it broke my heart to see them in those incubators and hooked up to those machines, but today, at 16.5 months old, they are WALKING and RUNNING. S., just like Joy;s daugher's, Twin A walked a week after her 1st birthday and Twin B walked when she was 13 months. Do not worry, all babies are not on the same timetable. But, you can help her along and just pray.
When they were six-seven months old, that is when my hubby and I began showing them tummy time, sitting up, crawling and they pulled up themselves.
S., I would not be alarmed by what other Mom's say about your daughter. You said she is developing fine in other areas so do not worry.
When I would go out with my twins when they were younger, Mom's would look at my strangely because of their height and weight and I would PROUDLY say, "My twins were preemies and this is why they are so small for their ages."
Preemies are in a class all of their own. They are survivors! And very special. Have you ever thought of giving to the March of Dimes? I do sometimes because that is the org that helps keep preemies alive in the NICU.
God Bless S.,
M. in Tracy