Hello my daughter is 5.5 months old she has really good head control and can do tummy time without getting upset on a tummy time pillow fine, but she doesn’t push up on her arms and without the pillow she is the same and doesn’t hold her head up as much. So, I mostly use the pillow but I feel like she should be able to push up on arms now or soon at least? Also any tips for tummy time on the floor I.e without the pillow?