Roslyn-reared J.P. Rosenbaum and Ashley Hebert, who became engaged on "The Bachelorette" season seven and were married in 2012, will appear Monday on this season's "The Men Tell All" special, ABC announced.

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The pregnant Hebert had said in April that the couple is expecting a baby boy. And now entertainment blogger Steve Carbone of says Hebert will have a standard pregnancy ultrasound test on the live show.

An ABC spokeswoman said the network had no comment.