Hello :) I'm looking for a sterek fic where due to a misunderstanding derek thinks stiles doesn't want him, and he leaves after they have sex. And he ends up pregnant but he doesn't realize it, he and everyone else just thinks he's getting fat, and he tries some ways to lose weight but he just seems to get fatter, 100% sure it was on ao3. Thanks in advance :)
spectaclesandscars and somekindofspacegod say
Mate Withdraw Syndrome by somekindofspacegod (1/2 | 21,529 | M)
After years of secret pining Derek finally claims Stiles as his mate, only to see his whole world shatter around him when a simple misunderstanding the next day leads him to believe Stiles has rejected him.
Caught in a spiral of grief and mounting denial Derek shuts the rest of the pack out for months, not realizing that the fact that he keeps having to buy larger clothes has nothing to do with mate-withdrawal induced emotional eating but everything to do with the fact that they probably should have used protection.
In short: Derek stars in "I Didn't Know I Was Pregnant"
Chapter 1 is its own story, chapter 2 will tell the events from Stiles' POV.
Also, please read the WARNING in the beginning.