As you have mentioned a preterm 32 week baby now in the 6th month, the milestones of developmental and weight for the corrected age are acceptable. ( good infact).
I'm sure the R.O.P screen would have been done and also she is regularly being seen by your paediatrician as regarding developmental status.
Next Steps
Mostly neck control should be complete in the coming month.
Health Tips
Be cautious but don't stress yourself too much as it affects your baby too.