X-Clan The Origin by Lexi C. Foss

The compound walls have been breached.
The Infected are upon us.
There is no cure. Nowhere to hide. The only option is to run.
Alpha Jonas is my sexy-as-sin guard.
The one assigned to protect me from a world doomed by chaos and disease.
Now he promises to escort me to safety.
There’s just one problem.
He doesn’t know that I’m an Omega.
And not just any Omega.
An Omega who is about to go into heat.
I’ve spent my entire life hiding from my fate.
But in our haste to flee, I left my suppressants behind.
I can either accept the inevitable.
Or take my chances with the Infected.
Because once Alpha Jonas learns what I am…
He won’t just knot me.
He’ll claim me.