Pink - sorry for the bad nights' sleep.

I think we all need to have a lie in as our first Mother's Day present as we're all due around then anyway.
Hann - Not stupid at all. I didn't know what it was either and I'm a nurse! IUGR is intrauterine growth ******ation. It just means baby is small for his/her gestation age. It could be due to my placenta not working properly among other things. I think scans are rubbish at predicting weight/size as well, but my 12 and 20 week scans showed that I have uterine notching which meant that the blood flow to baby and placenta wasn't as good as it could be. Uterine notching puts you at an increased risk for high blood pressure and IUGR so that's why my specialist wanted to do a scan to make sure baby was growing as she should be. So, I'm not worrying until I have to and I'm just hoping I have petite babies.
I think it's insane that you were told Annabelle would be 7 lbs and she wasn't even 6 lbs at 4 days overdue! I know plenty of girls who were told they were having "gigantic" babies and they ended up being average. So, like you, I don't put a lot of stock into measurements at scans. Even if this little one ends up being petite, I rather like it as their clothes last much longer!
Once this little one is out, our three children will be called Christian, Aubrey and Annabelle. I think Annabelle sounds nice with my other two's names. And I love Annabelle with Caitlin or Henry. They both sound lovely.
Oh and I just noticed BnB won't let me type out what IUGR stands for. It's
r-e-t-a-r-d-ation. I actually hate that word too, but it's the medical term for it. :/