Because you dilate from 1 to 10 and when your bout 10 that's when you start to push
If your only 1cms then you've got to wait 9 more cms if that's what your asking but you can be at 1 for weeks or months hun good luck
It's hard to tell. Some women dialate quickly, others sit at a 1 or a 2 for weeks. I'm 40 weeks and I've been at a 1 since 34 weeks.