After six months of marriage, and one week after announcing they are expecting a baby, Keshia Knight Pulliam and Ed Hartwell have called it quits.

On Monday, the ex-NFL star filed divorce papers in Atlanta, according to TheYBF.com.

Hartwell, 38, cited irreconcilable differences as the reason for the split. He’s also raising doubt he’s the father of their unborn child. “Right now, the only thing I want is a paternity test for the baby,” Hartwell told the site.

The split comes as a shock since Pulliman, 37, announced she’s expecting a baby girl last week.

“Surprise!! We have a new addition coming soon,” the “Cosby Show” actress gushed on Instagram.

The ex-lovers had a four-month whirlwind courtship. They got engaged on New Year’s Eve last December and tied the knot just weeks later.

While this is Pulliam’s first marriage and divorce, it’s the second trip to the courthouse for Hartwell, who was previously married to former “Real Housewives of Atlanta” star Lisa Wu.

A request for comment from Pulliam was not immediately returned.

This article originally appeared in the New York Post's Page Six.