Well, do you? I don't.
A few weeks ago a lady friend of ours said that she would have a birthday party for Cathy and then she thought about it further and realized that there was nobody she could invite besides my wife. I told her very curtly to drop the subject with out really knowing why it bothered me so much.
But, you know what? My drab side has seen 64 birthdays so far and they have all been on Dec. 22 - with good reason. But when was my fem side born? I do not know because my fem side, which was always there, simply evolved into a place in my consciousness. But Cathy has no birthday. That made me feel sad. It isn't so much that nobody would come; the real issue is that that there is no beginning day. I need to think more about it. It has some good sides and some bad sides.
Anyway, do you have a fem birthday? If you don't, do you care at all? For that matter, have you ever thought about it?