Congrats on the upcoming youngin
However, don't count your boys until 'he' is born.
I had a co-worker come in one day waving around an ultrasound pic and all excited.
"The doctor says we are going to have a boy!" he said. See, here's his 'hangy down thingy'!
Well, some months later, out came a beautiful baby GIRL.
That was back in 1982, and I guess ultrasound is probably more advanced these days, but I'd suggest that you pick a girl's name as well, 'just in case'