Carl Williams' stepdaughter pregnant: reports

The stepdaughter of slain Melbourne underworld figure Carl Williams is reportedly pregnant to her partner as the pair wait to stand trial over an attempted murder.

Roberta Williams took to Facebook overnight saying her daughter Danielle Stephens and boyfriend Sana Ghanim are expecting a baby in six months, News Corp Australia reports.

The pair are on bail after they formally pleaded not guilty to the attempted murder of Serkan Kala in Broadmeadows last year, they will return to court in September alongside co-accused Tugay TJ Afacan, 23.

It's alleged Afacan drove to an industrial street in Broadmeadows where he shot Serkan Kala, 22, while Stephens and Ghanim were in the car. He has also pleaded not guilty.

The Facebook post is yet to be confirmed with the family.