Did you take the proper pre-conception precautions? I can't remember exactly what they are anymore, and maybe it was coincidence, but they seem to have worked for us. They are certain positions and times of the month that supposedly increase the chances of one sex of the other.
Male nurses rock, BTW. After working on ICU/CCU I am willing to stipulate that on those particular units, and in the ER, a male nurse would be my first choice as a caregiver. You go, boy!