Laura Bellizzi’s friends claim the former reality-TV star has been bragging that she’s pregnant with Mel Gibson’s baby, but her father exclusively tells RadarOnline.com: “I can guarantee it’s not Mel Gibson’s baby.”

According to Laura’s father, Jan Patricio, his pregnant daughter has never said that Mel is the baby daddy — but he remained mum on who the real father is.

“I know my daughter and I know she’s pregnant,” Jan said. “She’s not saying anything about Mel Gibson being the father though, that’s not true.”