Help finding a book

Hey guys, Im trying to track down a book I read years ago that I really liked, but I cant remember the name or author for the life of me. Heres what I do remember though:

1. The mc starts at a new office job, and she’s immediately attracted to one of her coworkers (I feel like his name was nick but not sure).

2. At some point in the story, he ends up moving in with her though I don’t remember why.

3. As the story goes on, they get closer, start hooking up, and eventually she ends up pregnant.

4. And I’m pretty sure it was part of a series or at least had other relating stories.

I already tried searching the app and couldn’t find it, so not sure if it’s been removed or not but any help would be greatly appreciated!