I'm 9weeks pregnant, doc said my uterus sizeis about 10weeks, does the uterus usually grow if i'm having blighted ovum or if the baby is not growing?

Tomato Tamahto: 9 weeks, 10 weeks. Yes, the dates are important, but to a certain extent this is an exact science, and to another extent this is an inexact science. If you have an ultrasound measured in millimeters that indicates a certain number of weeks, fine. There are ranges that are acceptable and normal. I would not quibble about 1 week - i would worry if you were a month off! measure again in a month.