mrsg hope it goes ok at the docs.
And thanks everyone for your nice words. It's funny in RL how many comments I have had already about do I feel disappointed that it's another boy? Like having a healthy baby and taking a year and half to conceive him isn't a blessing?!!! I'm disappointed that my ds wanted a girl and it's not, but other than that I LOVE boys. Hmmm that sounds a bit wrong, but you know what I mean! 
For those debating finding out or not I didnt the first time and I loved the surprise at the end. This time we found out for different reasons. I wasn't worried about knowing but now I'm glad I did as I think it gives time for my ds to bond better as he'll be 3.9yrs when baby arrives which is old enough to understand a lot more. Plus it means we get to plan better when on a budget, we don't need to buy anything which is great and the boys could even share a room later on!
I know what you all mean about the pink/girl stereotyping, it's hard to completely avoid it, but you have the majority control over clothes and toys etc.