I'm on nuvaring and i don't take out the ring in 5 days i recently had sex and was spitting pink and bronwish blood now it's brown what's happening ?

Breakthrough bleed: Breakthrough bleeding (bleeding at the wrong time) is very common on birth control such as Nuvaring. It happens in about 1/3 of users. Its no big deal and usually self corrects over time. If you are not satisfied or it continues to happen then consider using a different birth control method. It is a common side effect and does not mean something is wrong or that the method is not working.