What to Expect When

(Note: Despite the ridiculous title, this fic is not crack.)

Written for this prompt:

Halward is becoming increasingly irritated with Dorian. His omega son shows no interest in alphas, or even betas, like he's supposed to. Instead, he only prefers the company of fellow omegas, which makes breeding rather difficult. Halward believes that all Dorian needs to cure him of his homosexuality is to just get a real good dicking from an alpha while in heat; after all, no omega is gay when in heat. The next time Dorian goes in heat, Halward turns his fiancé loose on him.

Dorian flees Tevinter after the rape and heads to Redcliffe, though he soon discovers he's pregnant. Dealing with his problems isn't exactly something Dorian is good at, so he prefers to just ignore his situation for now and pretend like the pregnancy doesn't exist, actively hiding it from others. Besides, he has a world to save. Corypheus isn't going to put his conquest on hold just because he's knocked up. While at Skyhold, Dorian meets Cullen, who is also an omega...