Its J.u.s.t Us (a Klance Mpreg Omegaverse AU)

When the pack finds out Keith is an Omega, they all start to stray away. The pack was full of Betas and Alphas. They all thought Keith was a Beta until his heat stirred up. After several months of taking suppressants, they just didn't work on him anymore. Knowing he would attract to many Alphas, he stayed inside his home thinking it would keep everyone away. Unfortunately, that isn't the case when Alphas start showing up at his door growling and smirking.
For Keith, this meant sleepless nights, long days, and always being begged to open the door. His sent was getting stronger day by day and is in need of an Alpha. Knowing he probably set of many ruts, he knew going outside was instant death. Though one night, he was laying in bed. Outside was a bunch of cat calling and begging, even howling could be heard. Weird thing was it all stopped. Very quickly as well. All that could be heard was growling and scattering. A large, strong, protective Alpha was now just sitting out of Keith's' little house. A small knock was heard, just a knock thought. No growl, claws on the door, playing with the knob, only a knock.
That is where this story begins.