Lighter days?

Amanda • ♐️ // 23 // feminist 🚹 = 🚺 // Hufflepuff 💛// pro choice // 🚫No baby dust, please!🚫 // 💕8-27-16💕

Question, I know you’re supposed to empty your cup out every 12 hours, but towards the end of my period my flow is extremely light. Could I leave it in for more than 12 hours? Has anyone ever done that? Did anything happen?