Ryan Phillippe's ex-girlfriend, Alexis Knapp, gave birth to a daughter on Friday, July 1, and while it hasn't been confirmed that Ryan is the father, he was in the delivery room with his rumored baby mama!

Given the timeline of their hookup (not to mention the fact that he went with her to several doctor's appointments!) it certainly seems like the 36-year-old actor is a daddy once again.

Alexis Knapp Ryan Phillippe

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In Touch reports that Alexis gave birth to a nearly 8-pound baby girl, which she named Kai, at Cedars-Sinai Medical Center.  She was due the week before, but on June 30 the doctors decided to induce labor. "It was a smooth delivery if a little late," a pal tells the mag.  "Ryan took Alexis to her last doctor's appointments and was there in the hospital when she gave birth," the friend added. "He's waiting for the DNA test to see of he's the father, but he's acting like he is."

Ryan also has an 11-year-old daughter, Ava, and a 7-year-old son, Deacon, with ex-wife Reese Witherspoon.  He has also recently been linked to actress Amanda Seyfried.

Congrats to the happy couple!  Er, ex-couple!

Photos courtesy of Fame Pictures and Pacific Coast News