Acceptance For His Omega by Harper B. Cole, et al

I can’t imagine a day without you in it, let alone a life.
It was only supposed to be a one night stand. Dallas was following an arsonist’s trail, and Nick was the hot bartender who kept him company while he waited. But then Nick is pregnant, and Dallas is gone.
Dallas’s bear won’t let him forget the omega fox that was iso mischievous and so submissive, completing him in ways he hadn’t known was possible.
When Dallas finds out about the baby, he’s determined to do right by Nick, but the arsonist strikes again, putting their relationship into danger before it has a chance to truly begin.