John Travolta has reportedly asked prosecutors to drop the charges in a $25 million blackmail plot against him

The retrial of two Bahamians accused of extorting him over the tragic death of their autistic son Jett was set to begin September 6. But John — whose wife Kelly Preston is pregnant with couple’s third child — wants to put the ordeal behind him because he fears a new trial could affect Kelly’s miracle pregnancy.

“John desperately wants to avoid any risks to Kelly’s delicate pregnancy,” a source told American tabloid the National Enquirer.

“He just wants this nightmare to end.”

Jett was 16 when he died in January 2009 after suffering a seizure at the family’s Bahamian vacation home.

Ambulance driver Tarino Lightbourne, who drove Jett to the hospital, and lawyer and former Sen.Pleasant Bridgewater were charged with blackmail after they allegedly threatened to “expose” Travolta over a routine transport release document he signed.

They claimed it meant that he was responsible for Jett’s death.