Bridget Moynahan had to have a caesarean section to give birth to her baby son yesterday after difficulties developed toward the end of her pregnancy, In Touch has learned exclusively.

And the boy’s father, NFL quarterback Tom Brady, arrived at Saint John’s Health Center in Santa Monica moments too late for the birth.

But everything turned out fine and the 7-pound 14-ounce, 22¼-inch baby is healthy. “Mother and baby are doing well,” says her rep. The Boston Herald says Bridget has not decided on a name yet, but is leaning toward calling her first child William.

Insiders say the problem was that the baby was in a “transverse lie,” meaning he was laying across the uterus, giving Bridget, 36, the huge baby bump she sported toward the end of the pregnancy. Attempts to manipulate him into a better position for the birth were not successful.

Tom, 30, arrived at the hospital carrying a large bunch of orchids and white flowers shortly after 2 p.m. yesterday, but he was just minutes too late. "It was odd,” says one witness. “Here was this man with this beautiful bunch of flowers on this happy occasion — but he looked pretty sad."

Tom has now had to fly back to the East Coast to rejoin his team, the New England Patriots, and says he will play in tomorrow’s pre-season game in Charlotte against the Carolina Panthers.