Mary Cheney is preggers...

[JazmenFlowers]

WASHINGTON (AP)--Mary Cheney, the openly gay daughter of U.S. Vice-President Dick Cheney and his wife, Lynne, is pregnant.

Mary Cheney, 37, and her partner of 15 years, Heather Poe, 45, are expecting a baby, said Lea Anne McBride, a spokesman for the vice-president. The baby is due in late spring.

"The vice-president and Mrs. Cheney are looking forward with eager anticipation to the arrival of their sixth granddaughter," McBride said.

The VP's other daughter, Elizabeth, had her fifth child with her husband in July.

Mary Cheney, an aide to her father during the 2004 campaign, now is vice-president for consumer advocacy at AOL.