Revealing name...

So my husband and I have known what we wanted to name our baby if it was a girl (which it is) since we were TTC but he doesn't want to tell anyone and instead wants me to lie and say that we don't know what we're naming the baby. He wants her name to be revealed when she is born. I've asked him why he doesn't want to say and he doesn't have a reason "just because". And it irritates me because I'd really like to refer to her by her name.