Model Knapp learned that she was pregnant after she and actor Phillippe had already broken up. The baby, due later this year, will be Ryan's third, as he has two kids with ex-wife Reese Witherspoon.
Proving that there are all kinds of ways to have a family, American Idol vet Clay Aiken and his close friend Jaymes Foster (sister of producer David Foster) welcomed son Parker in 2008. Aiken came out of the closet not long after, telling People magazine that he didn't want to lie to his son.
The actress and the football star had just split when Bridget learned that she was pregnant. Though they didn't get back together, they agreed to co-parent son John. Since then, Tom has married and had another son, Benjamin, with model Gisele Bundchen.
The comic and the former Spice Girl had a whirlwind courtship, but when Mel announced that she was pregnant Eddie claimed the kid wasn't his and demanded a paternity test. After a much-publicized battle, Eddie admitted he was baby Angel Iris' father and agreed to pay child support. Mel then married Stephen Belafonte, with whom she is expecting a child later this year.
Model Knapp learned that she was pregnant after she and actor Phillippe had already broken up. The baby, due later this year, will be Ryan's third, as he has two kids with ex-wife Reese Witherspoon.
The two met while working on the Broadway musical Rock of Ages but were not a couple by the time daughter Malena was born. Constantine told People magazine that the parents are "best friends."
In between relationships with on-again off-again fiancee Sienna Miller, Jude had a fling with model Samantha Burke that resulted in a daughter, Sophia.
Sandra's divorce from Jesse James wasn't the only shocker in her life. Soon after news of his cheating broke, she announced that she had adopted a son named Louis - solo, even though she and Jesse had been married when the process began.
The actor and the rocker's daughter had a fling that resulted in a pregnancy. Despite not being a couple, they presented a united PR front and each vowed to take an active role in the child's life.
Denise filed for divorce - and a restraining order - against Charlie while she was pregnant with their younger daughter, Lola.
The German model and the Italian mogul split while Heidi was pregnant with daughter Leni. Soon after, Heidi met musician Seal. He was present for Leni's birth and they married soon after. They have three more kids, sons Henry and Johan and daughter Lou. Flavio is reportedly not in Leni's life at all, and she is considered Seal's child.
The longtime couple split up when Mary Louise was pregnant. Billy rebounded with actress Claire Danes, his costar in Stage Beauty, and Mary Louise gave birth to son William Atticus on her own.
Former football star turned sports commentator Tiki Barber and his wife split up when she was eight months pregnant with twins. Turns out that Tiki had been cheating on his wife with a former NBC intern. Ginny was so mad that she refused to allow Tiki in the hospital when she gave birth.
