Buzzy, big hugs to you. So sorry you've had this news now, but as you say at least you can be prepared for it. Am sure you will be a fantastic mum to your little girl no matter what, and will have so much pride in her. You seem to be coping amazingly well with the news but please don't feel you have to for our sakes-if you need to come on here and have a rant or a cry then do-that's what we are here for.
Insy, I'm in the same situation as you. I've always wanted 4 but dh is very firm that this will be our last. I can't bring myself to talk about it with him cos I get so upset. He said he was going to get the snip after this one and I told him if he did I'd divorce him- obviously I want us both to want more before we do, and I'd also want us to be in a better financial situation so we could look after them all properly etc but sterilisation is just too final. Who knows how we'll feel in 5 or even 10 years time and I want us to at least have the option. Am definitely in denial that this is our last!
Think bump shape is completely irrelevant. With dd I carried high and out front, and only put on weight anywhere else in the last 2 weeks. This time I'm carrying low and slightly more around the sides but still mainly out front-everyone keeps telling me this must mean it's a boy but I think it's just more to do with second pregnancy. I also get comments re the sex, with me almost everyone says they can't imagine me with a boy-don't see why not!