She wrote the family is getting larger.
The actress has been married to Italian TV producer Mattia Dessì, 39, since 2006 and was previously married to Raoul Meyer, Sebastian Copeland, Sylvester Stallone and Kasper Winding.
Congratulations to Brigitte Nielsen, who has revealed she is pregnant with her fifth child.
"The children have kept me going", she said in an interview. I would love to because of all the things I have learned. Mattia and I have discussed it, but I don't know how likely it is.
Best-known for her roles in 1980s movies Red Sonja, Rocky IV and Beverly Hills Cop II, Nielsen posted images of her very pregnant belly to her social media accounts this week.More news: US Plans to Shorten Length of Visas of Specific Chinese Citizens
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Brigitte has four children - all boys - from a previous relationship: Julian, 34, Killian, 28, Douglas, 25, and Raoul, 23.
Her third marriage, to Sebastian Copeland, lasted from 1990 until 1992, while she was Wednesday to Raoul from 1993 until 2005.
The Danish-Italian film star and ex-wife of Sylvester Stallone posted a picture on Instagram of herself holding her bump along with the caption: "Happy time (heart) positive vibes #happyness #positivevibes".
The two have been been married since July 2006 when they tied the knot in Malta, Italy after first having an unofficial ceremony in February 2005.