BEN & JEN MARRY!

JEN GARNER ARRIVING ON THE TURKS AND CAICOS ISLANDS WITH COSTAR VICTOR GARBER

Jennifer Garner and Ben Affleck have secretly married, The National Enquirer can exclusively reveal.

Wearing white, the pregnant Alias star sealed her union with Ben on a sandy beach on the Turks and Caicos island yesterday evening.

With the sun setting, her costar Victor Garber watched as Jen, 33, and Ben, 32, embraced and kissed.

And The National Enquirer was there to witness the romantic moment.

The couple flew to the paradise hideaway yesterday morning, accompanied by Victor, who plays Jen’s CIA agent father in the hit TV show.

It is understood the couple are leaving the luxury resort Parrot Cay, where they spent their first night as a married couple, later today or tomorrow.

The newlyweds are believed to be heading for Jen’s family home in Charleston, West Virginia, to celebrate their nuptials with family and friends over the July 4 weekend.

In April, The National Enquirer exclusively revealed that the couple got engaged after learning they were expecting a baby in November.

Ben proposed by giving Jen a $500,000, 4.5-carat cushion-cut diamond.

The National Enquirer also reported that Jen at first could not wear the ring from top jeweler Harry Winston because it was too large and had to be re-sized.