I've just been for my 12 week scan and I've been asked to go back in 2 weeks for another one. She's dated me at 11 weeks but couldn't see everything she needed to see to date me properly and give me an accurate EDD. Is it normal to have to go back if you're only 11 weeks, not 12.
She didn't seem concerned that anything was wrong, just said it was a little early to date accurately.