How long do I leave in the ring?

Each ring has enough hormones for pregnancy prevention for up to 4 weeks. If you want to have a period each month, leave the ring in for 3 weeks, then take it out for the fourth week. Want to skip your period altogether? Leave the ring in for 4 weeks and switch it out for a new ring the same day. Check out the How to Use It section for more details on how to get and use the ring.