Conversation so far:
In The O.C., does Ryan ever find out about his baby
In season 1 of the O.C., Theresa reveals she is pregnant but does not know whether the father is Ryan or Eddie.
what does ryan do about theresa's baby in the o.c.
Feeling compelled to help Theresa bring up the child, Ryan decides to go with her, leaving Marissa, the Cohens, and everything else in his life behind.
why does ryan return to newport after following theresa in the o.c.
While Ryan is in Portland, Theresa notifies him through the telephone she has miscarried. Theresa tells him he needs to go back to Newport with Seth
did theresa really miscarry in the o.c.
Theresa gives birth to the baby in season 2

Question: whose baby did the character give birth to
Self-contained rewrite: whose baby did theresa give birth to in the o.c.