family getting larger ❤️ #me #family #brigittenielsen #babybump

A post shared by Brigitte Nielsen (@realbrigittenielsen) on


Whoa!

Actress Brigitte Nielsen is 54-years-old and pregnant!

Sylvester Stallone's ex showed off her huge baby bump in an Instagram photo, and she looks at least six months along! "Family getting larger," she captioned the snapshot.

No word on who the father is, or when she's due.

The blonde bombshell has been married five times and has four sons ranging in age between 23 and 34.

We guess she's mighty fertile!