NuvaRing: If you begin the NuvaRing with your period it should be effective right away. If you start it at any other time use a back up method for at least 7 days. After 7 days the NuvaRing should be fully effective (98 % effective).
Answered 6/30/2014
4.2k views
Pretty quickly but..: The ring starts working very quickly but you should use a backup method of contraception for a week if you are not switching from another hormonal contraceptive method.
Answered 10/24/2017
4.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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