AbFab, the scan was a private one as we're in the Middle East, so no NHS for this pregnancy (which has it's good and bad points). The ob-gyn who did the scan was lovely and said that, although it's too early to tell definitively, as the genitals look the same at this point, the direction of the line at the appropriate region can indicate a boy or girl. It was horizontal rather than vertical. Also, as am very old, am more likely to be having a girl - apparently the female follicles last longer. Of course, it's just chance right now, but she's a pretty experienced doc so am hopeful she's right as DS2 will be over the moon with a sister.
Re nappies, I've got loads of motherease with airflow and some tots bots wraps and they are definitely the best especially for night time with a couple of extra stuffers. I also have a few bumgenius and blueberry pocket nappies that are great for the day. The blueberries are expensive at around £18 each but they look gorgeous and last ages and they'll be on their second baby (the motherease and bumgenius on their third outing) so on a cost for wear basis, am saving quite a bit of money. DS3's first nappy was an orange velour blueberry and the midwife said she wanted to have another baby juts so she could put a nappy like that on him. Aw. Kittykins is a good site for nappies and the real nappy message board on mn is, of course, really helpful.
On the studying front, I've got an A level Biology to cram between now and baby - leaving myself revision time for the AS in January and the A2 in July 2011. Or, if I feel really brave, may do AS and A2 in January. Eek.
Shieldbug hope you're better soon and good luck with the results tiny.