Was Georgina Really Pregnant?

In the season finale, Georgina arrives at the loft with "something" of Dan's. It is revealed that Georgina is pregnant with what she says is Dan's child.

Who is the real father of Georgina's baby?

As fans may recall, Georgina (Michelle Trachtenberg) gives birth to a son named Milo in season four. While she initially tells Dan Humphrey (Penn Badgley) he's the father, she later reveals that Milo is actually the son of a Russian man named Serge, whom she'd met on a plane.

Is Milo really Dan's son?

Milo is briefly shown in several episodes, mainly with Philip and sometimes Georgina. It's mentioned that he has a nanny. It was confirmed that he is not Dan's real son.