Hi, my good friend's DD was born 1 month early and she didn't start rolling until she was 8 months old, but then she caught up straight away and was walking at 11 months of age. Compared to my DS1 who was rolling at 4 months and didn't walk until he was 13 months! I'm sure your DD will roll when she is ready, please don't feel pressured by what other people's babies are doing, they all develop at their own pace.