Photo-Girl you must read my mind. We seem to be in the same situation and it almost crosses my mind everyday, should I go for 3 and I am with you, it would definately have to be HT for a guarantee! But I have reservations the same as I am 31 now and ds2 will be born about a month before I am 32. I think of things.....if I stop now there will be only 2, like you said will not be out numbered, I fear the middle child syndrome and I don't even know why, being able to handle 3 at one time on like vacations or even going shopping. I am a little nervous that the majority said it was harder to go from 1-2 eeEKK!! I too, hope that the GD will lessen as ds2 comes and maybe I will change my mind about the whole thing. I packed away the girl clothes I had bought for the 2 weeks I thought they said I was having a girl. It was torture. Some days are so good with positive thinking and some days the only thing in my mind is how long should I wait to start HT to get a girl because I am not getting any younger lol.
Jen2012: I'm older than you, but even if I were younger, I think I would still question going for a 3rd because let's face it, for me, 2 always seemed like a good number for me and going for #3 would just be to experience a DD - not sure it's a good enough reason, kwim? As for the middle child syndrome, I wouldn't worry too much about that - I know a lot of middle children (and a lot of only children too) who are completely fine!
-------I'm sorry you went thru thinking it was a girl and then being let down. Of course, it's not nearly as devastating as finding out something is wrong with the baby, but still, when you're really hoping for your DG, it must be twice as hard.