I really don't get this.  I've heard the term before, and I'll tell you what I thought it meant, then tell you what I just read.

Here's what I thought this term meant. I thought it meant that you have a honeymoon period with your baby after it's born. A bonding kind of thing and THEN you go back to work - verses being forced to get back to your cubicles right after becoming a new mom.

But that's not what I see here as I do some research.

Here is a video I found that seems to be the official explanation (from Mama Natural)

If this is true, then the name doesn't make any sense! You don't go on a honeymoon to get away from your honey!  So why would you get away from your baby on a Babymoon?  Can someone explain this to me?  These things keep me up at night!