Gisele Bündchen on June 17
06/19/2009 AT 11:00 AM EDT
is expecting and "ecstatic," sources tell PEOPLE. She is due early next year.
Speculation has grown since pictures showing the supermodel in Brazil this week surfaced showing what seems to be a perceptible bump. Bündchen and New England Patriots quarterback husband Tom Brady
were married twice
this Spring – first in a ceremony in Los Angeles Feb. 26, then exchanging vows before friends in early April
at Bündchen's Costa Rica home.
"Gisele will be an excellent mother," a source tells PEOPLE. "She's always wanted kids." Reps for Bündchen reached by PEOPLE for confirmation refused to comment.
“Family is everything," Bündchen, who turns 29 next month, told PEOPLE last month. "I think family is the base to everything. I think that is one of the things I’m most grateful for. I have a lot to be grateful for but I think that's definitely number one.”
Another source close to the couple says, "You know Gisele and Tom are just enjoying themselves, being married and just doing their thing ... Gisele has been talking about it with friends. She says she's ready for a family."
This is her first child; Brady has a son
, John, with ex-girlfriend Bridget Moynahan.