Anyone have any idea why in the world my uterus is measuring at 41 cm when I was only 28 n a half weeks pregnant? this was what I was told on dec. 15th and I have an ultrasound scheduled for the 5th so they can see how and what she's doing I'm just really nervous because not even my doctors know why I'd be measuring 13 cm above where I was. I haven't been measured since then either but I have an ob appointment on the 4th.