Meryl Streep's Daughter Mamie Gummer Expecting First Child!

Mamie Gummer is going to be a mom!

The 35-year-old actress and fiance Mehar Sethi are expecting their first child. Mehar proposed to Mamie back in August.

PHOTOS: Check out the latest pics of Mamie Gummer

Mamie hid her baby bump in a floral-print dress as she hit the red carpet for the premiere of Mary Queen of Scots earlier this week in New York City.

Mamie is the eldest daughter of Meryl Streep and husband Don Gummer. This will be their first grandchild.

Congrats Mamie and Mehar!