Help! Fiction Adult Romance-Pregnant woman falls for dead exes roommate/BFF

Hi, During the pandemic my co worker was listening to an audio book while I was in the room and it was interesting, but I missed most of it. I can not remember title or character names. The main character was female in her 20's I believe and she had a boyfriend who dies, I believe in a car accident. She finds out later that she is pregnant and ends up moving in with the (dead) boyfriends roommate(I think best friend) and the roommate pretends to be her boyfriend. I know nothing else. I think they end up together in the end. I am pretty sure the book was new in 2020. I work in a library and the one listening was a librarian. I think it might be a YA book but it could be an adult book. Thanks for the help!

>1 wolf5300: Hi! I'm afraid I don't know the name of the book, but you're more likely to connect with someone who might if you give your thread a descriptive title. You can request a title change at https://www.librarything.com/topic/349163. Also be sure to check out our tips for posting. Good luck!

title change requests: https://www.librarything.com/topic/349163
Posting tips: https://www.librarything.com/topic/329521