Ok, but if I failed to use a back up method should I consider emergency contraception?
From the website:
If NuvaRing has been out for more than 3 continuous hours during the third week of using a new NuvaRing: Throw the ring away and choose 1 of the 2 options below:
1. Insert a new ring immediately. This begins the next 3-week use period. You may not have a period but you may experience breakthrough spotting or bleeding.
2. Have your period and insert a new ring no later than 7 days from the time the previous ring was removed or expelled. This option should be chosen only if the ring was used continuously for the preceding 7 days.
In addition, you must use a barrier method (such as condoms or spermicide) until you have used NuvaRing for 7 days in a row.