Most of my GD did fade once he was born but it did rear it's ugly head at times afterwards as well. I don't think I truly started to really move on until DS3 was close to a year old. Once that process of healing and moving on began though, it just seemed to "snowball" and I felt stronger. It felt so good to take all my power back and no longer let GD control my feelings.
Wow, I sure hope this is what happens for me too. GD faded a lot when DS2 was born, but I still deal with bouts of it and so hope it will be less and less as he gets closer to age 1 too. I'm just really tired of the pangs of despair when I see little girls. When I'm at home with my family, I don't obsess about it too much thankfully, but it still crosses my mind regularly and it just feels surreal and unfair that I will probably never have a DD... Sometimes I recite this quote in my head: "God, please grant me the serenity to accept the things I can't change.". But then it goes on ".... The courage to change the things I can": what if that last part means having a 3rd child? I never wanted more than two and am still very hesitant about it, and there are no guarantees of a girl unless HT is done...but.
Btw, had DS2 at age 36 and no problems whatsoever with pgcy and delivery. If you'Re healthy to start with (no diabetes, no high blood pressure, etc.), you should be fine.
Anyway, just to say I can relate to a LOT of what's been written on this thread.