MGyllenhaal081610_01_X17230WM.jpgMaggie Gyllenhaal is going to be a mom again, according to Life & Style.

Jake's 33-year-old sister, who is married to Peter Sarsgaard, is reportedly six months along. A source tells the mag:

    Shes thrilled to be pregnant! She and Peter have wanted another child for a while. Theyre very happy that theyll have another baby in the house soon.

During a red carpet appearance at the Rome Film Festival, Maggie appeared to have a bump. The source goes on to say:

    Jake is so happy that shes pregnant again because he loves kids. Maggies said that hes the best uncle and has done a lot of sweet things for her first child.

Maggie and Peter have been together since 2002, but tied the knot in 2009. The couple already are parents to 5-year-old daughter Ramona.