Unexpectedly, my cousin and his wife had a baby boy yesterday evening. But I puzzled if I have a new Cousin or a Nephew. I've seen many cousins who because Uncles, even my co-workers asked if that means I'm an Uncle. I had lots of Cousins who had babies, yet I was too young to be an Uncle so I've been called cousin. But now that I'm 23 am I considered an Uncle or a Cousin?