Is this Ryan Atwoods's son?

Here is the your first exclusive picture of Theresa's baby  (Evan and Cole Jarvis) from  this week's all-new episode.   Same nose.  Same eyes.  Same wavy hair.  Is Ryan (Benjamin McKenzie) the father?   Can we really trust Theresa (Navi Rawat) since she misled Ryan before? The O.C. episode "The College Try" airs this Thursday, April 20 (9PM ET/PT) on FOX (official production stills can be found here).  Just four more episodes left leading up to the finale...