DS1 wanted to be a surprise, I guess. Either that or he was being modest. He refused to show himself until he was born, even then, my mom had to open his legs.
DS2 was out in the open, as soon as the Dr put the wand on my skin, the doctor said "Well, that's a boy"
With any future pregnancy - I'm on the fence. I kind of want a surprise, since the birthday won't be. I'll have to have a repeat c-section.