Extraordinary photographs purporting to show a secret pregnancy of film icon Marilyn Monroe can today be revealed for the first time.

Axar.az reports citing Daily Mail.

The world exclusive images of the beautiful Some Like It Hot actress and model were sold as original color slides at an auction in

Hollywood in November last year from the estate of well known Monroe confidante Frieda Hull.

But the stunning photos went under the radar, selling for a mere $2,240 with wealthy collectors not aware of their true significance.

Now DailyMail.com can reveal the six unique images were the prized possession of Monroe's loyal friend Hull, which she dubbed the ‘pregnant slides’ – a reference to a shocking secret the screen siren kept right up until her death.

The shots were taken on July 8, 1960, outside Fox Studios in New York after Monroe had completed costume and hair tests for her film

The Misfits, starring Clark Gable and Montgomery Clift .

The images clearly show a prominent bump from Monroe’s belly which Hull claimed was evidence the star was in the early stages of pregnancy.

And we can reveal the would-be father was not Monroe's then husband, playwright Arthur Miller, it was in fact Italian-French actor Yves Montand – who she met on the set of film Let's Make Love and who she had a very public affair with.