updated 03/17/2011 AT 1:10 PM ET
•originally published 03/17/2011 AT 1:20 PM ET
Ryan Phillippe’s ex-girlfriend, Alexis Knapp, is pregnant – but she’s not pressuring the actor to be involved with her unborn child.
“She has never asked Ryan for any help, nor does she expect it,” a rep for Knapp tells PEOPLE.
According to a source, Knapp, who briefly dated Phillippe last summer, has told friends that she’s expecting the actor’s child in June.
Another source says that Phillippe, 36, is awaiting the results of a paternity test to determine if he’s indeed the baby’s father.
“Alexis has maintained her silence and will continue to do so,” her rep adds. “Any ‘source’ claiming to have been her or her camp up to this point is false.”
Adds the rep: “She continues to appreciate the love and support of her family and friends.”
Knapp appears in two upcoming movies, Project X this Thanksgiving and the Miley Cyrus film So Undercover, also due out in the fall.