In the photo below, the actress — popularly known as Pe in Spain — is shown strutting her stuff on a beach in Barbados.
This photo of the star, a long-term favourite of film director Pedro Almodóvar, adorns the front cover of the March issue of the popular celebrity magazine ¡Hola!
The father of the unborn child is Spanish Oscar-winner Javier Bardem.
Cruz and Bardem started dating other in 2007 and married in 2010.
The two became an item after co-starring in the Woody Allen comedy Vicky, Cristina, Barcelona.
The couple announced that Cruz was pregnant with the couple's second child in February.