Ryan Phillippe ex Alexis Knapp reportedly telling friends she's pregnant with his baby
The 36-year-old actor dated Knapp after splitting with Abbie Cornish in February 2010; he's now reportedly involved with Amanda Seyfried.
Knapp "has been telling people he is the father," one source told Us Weekly, with another adding, "He and Alexis were actually together for a while ... it was pretty serious."
A source told People the baby is due in June.
Knapp, who'll be seen later this year in "So Undercover," was spotted on a girls' night in New Orleans in December, clubbing with costars Miley Cyrus and Kelly Osbourne.
Phillippe, who in recent whispers has also been linked with singer Rihanna, has two children from his marriage to actress Reese Witherspoon.
Reps for Phillippe and Knapp wouldn't comment, but it's believed that he will investigate paternity and, if found to be the baby daddy, take full responsibility for the bundle.
-- Matt Donnelly
Photo: Ryan Phillippe attends the March premiere of his film "The Lincoln Lawyer." Credit: Jason Merritt / Getty Images