New to board

Hi ladies-my name is Janelle. DH and I have 2 girls and just decided to try for a 3rd child and would like to try for a boy. (well, I think I want to try more than he does-I think he doesn't care as much if we conceive a boy or girl-of course I will be thrilled with either sex!) So here's what I feel is our biggest obstacle. DH is a Navy pilot and for some reason they seem to have an overwhelming number of girls. They're not sure if it's the radar in their plane, the altitude, the harness they have to wear, but something definitely has an effect. He does know some guys that have had boys, but having girls is much more common.

What can be done to sway for a boy? Is there a thread somebody can point me to or a good website? What do I do? Any help will be appreciated. Thanks! :)