Gender Disappointment?

My husband was certain we would have our third and final little girl, but 6 weeks ago we found out we were having a boy. Originally we had looked at names and he picked out a girl’s name that we both loved. However, since we found out we are having a boy, he has not suggested a single name and has at best said a few of my suggestions are “not horrible” after being prompted multiple times. Is this some kind of gender disappointment that he just needs time to get over? I’m only 24 weeks now, so should I just drop it for awhile?