Continuity mistake: When Ginger and Bee are buying tampons, Ginger takes the box from Bee twice without once giving it back.
Suggested correction: The problem is, they are offscreen between the two shots and at least a little time has passed given they're walking around a large store. And given Ginger is in a lot of pain and keeps grabbing herself, it's entirely possible she handed the box back to Brigitte offscreen. We also don't know how far they walked or if they did more shopping before they checked out. (Which is when Ginger grabs the box a second time.) It's not like she grabs the box twice back-to-back instantly.