J.W.
Hi R.,
I was an OT (occupational therapist) for 25 years, now retired. If your daughter is belly crawling, rolling from front to back and back to front, sitting independently, and getting in and out of all those positions smoothly, pulling to standing and beginning to "cruise"--plus, like you said, developing normally in all other ways, I wouldn't be too concerned. If she gets "stuck" and doesn't progress beyond the pulling to standing, or if she's not verbalizing, then I would call the Infant Parent (special education department) in your school district. It's good that the pediatrician is looking for signs outside normal development, yet some kids do skip crawling on all fours and go straight to pulling to stand, cruising, and walking.
Kids need to bear weight on their extremities to get the necessary "input" for joints and muscles to develop strength, stability, mobility, and coordination. If she is pulling to standing and cruising, then she is getting this input in her own way. You could try placing her on all fours and "rocking" her in this position, and "nudging" her at her shoulders and hips to work on her balance; play tug-of-war, and push against hands and feet. You could place her prone over a firm beach ball (that size, but stronger) and guide her to “push” against the floor or walls with hands and feet, etc. Make it playful. Let her "move" furniture and toys across the room. Babies need "resistance" to get strong, just like adults.
You are wise to be aware that your daughter is developing normally in all other areas. There are developmental charts online that give parameters for normal development in the first 3 years. Every child develops at his/her own rate and way. As long as she continues to progress in all these areas at a reasonable rate, it doesn't matter HOW she gets there (like skipping crawling and going to stand/cruise), as long as she DOES.
If, in time, you notice that she is delayed in more than one area, I would, in addition to calling the Infant Parent program, have her evaluated and treated by a skilled, private, pediatric OT, as the school district can provide therapy only as it relates to academics. If the doctor writes the referral, you, the doc, and the OT can work together to get the wording right so your insurance will pay.
Have fun with your daughter! Take her to playgrounds. Introduce her to new physically challenging experiences. Join playgroups. Get her in the pool this summer, as that is a wonderful activity to build strength and coordination in the entire body while having fun. Plus, it wears kids out sufficiently so they sleep well! ;+)
Good luck! jenifer