Rebekah starred in the 2009 series of BB, when she was a man called Rodrigo Lopes, and recently completed a full sex change.
Sharing a new video of herself on Instagram, Rebekah has said she has "no regrets", but admits her dad has found it difficult to accept she is no longer a man.
Rebekah said: "I used to be Rodrigo. I'm a woman now, I have boobs, vagina, female name, gender.. I cant regret. Life…"
Explaining her father's feelings on her transformation, Rebekah explained to fans: "I thought my family accepted me. But no. Only my mum. My dad said I'm not a woman.
"I've walked a long journey. I won't give up life even though my family makes me feel so bad.
"My future husband will have to know my past. I'm NOT going to hide anything. My man will have to be proud of me."
Rebekah has since been inundated with messages of support, with one fan saying: "I hope in time [your father] adjusts. You're incredibly brave and look amazing xxxxx."
Last month, Rebekah shared a picture of herself after completeing her sex change in Rio de Janeiro.
At the time, she said: "I've had my sex change in Rio with Dr Marcio Littleton. I now have a beautiful vagina with pleasure, depth, elasticity and normal humidity."
Watch Rebekah's new video here:
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