AU, but not all human.

Buffy is an eighteen year old dropout who’s pregnant and is trying to make ends meet earning minimum wage.

One night while walking home late, Buffy is pulled into an alley and pinned against the wall by a monster. A monster who looks human – what with his black leather and bleach hair – but with a face that sends chills down her spine. Buffy pleads for her life, but before she can tell him she’s with child, he figures it out himself when he hears two heartbeats.

She’s shocked when the monster who was ready to kill her instead chews her out for being irresponsible enough to walk home late at night while carrying a child.

What happens now?

The baby's father is either Parker or Riley, and they can't show up in the story.

Would love to see Spike scaring Buffy’s not-so-understanding boss into giving her better hours and better pay, before he eventually gets her a better job. 

Spike could turn up at the diner where Buffy works every day in order to keep an eye on her. This leads to him scaring off any man who can’t keep their hands to themselves.

The reason he's out during the day could be because he has the Gem of Amara. 

Spike could also stop by Buffy’s apartment in order to keep her company.

Spike's reasons for doing this is feeling lonely since Drusilla is gone. He's a caretaker. He's gotta have someone to look after.

If Buffy’s friends get chewed out for trying to get her to blow off work and come out partying with them, claiming that she’s no fun anymore, then that would be awesome.

Dawn as the baby would be adorable.

If you want Buffy to be called as the Slayer, then that's fine. 

Buffy can't become completely dependant on Spike, and must learn to stand on her own two feet.