In [Underworld Awakening](http://en.wikipedia.org/wiki/Underworld%3a_Awakening) Selene is captured and cryonically frozen after a bomb grenade hit her and Michael underwater.

She awakes 12 years later to find out she has a daughter, and apparently Michael is the biological father.

But I can't recollect that they actually ever explained where the daughter came from? Was Selene pregnant when they caught her? Or was the baby produced in the lab with DNA from both captives?

Maybe I just missed that part, I hope someone can clear that up.