Yesterday, we went in for our anatomy scan with our little girl. 18 weeks on the dot! Today, I got a call saying they want to see me back in 4-6 weeks. I've called my doctor to go over the results but can't get a call back until tomorrow and now I'm beyond worried.. Did anybody else have to go back for another ultrasound so soon? If so, why? Is it normal procedure or could there be something wrong?