Is This A Common Occurrence?

I wasn't really sure which section to put this in, and since "anything goes" is the most general category, I settled on it.

Anyway, since my wife went off birth control, her sex drive has been quite a bit higher than mine.

Neither of us actually have a problem with this, given that there are many different ways to get her off, we're just surprised.

I'm also curious how common this is?