My boobs aren't sore anymore?

Isabel • 24 years old first time mommy-to-be 🦄🍼💆🏻
Hey everyone this is my first post! Also my first baby :) I'm 5 weeks 5 days and up until a couple days ago I was enjoying bigger boobies and now they seem to have shrunk back down. Nothing else weird has happened so I hope this is normal. Anyone have any idea why this happened?