What happens in if you leave the ortho evra patch on for 3 week?

If you leave the Ortho Evra patch on for three weeks without replacing it, you may not receive the intended hormonal regulation for contraception. The patch is designed to be worn for one week at a time, and wearing it for longer can lead to reduced effectiveness and increased risk of side effects. Additionally, it is important to remove the patch after three weeks to allow for a patch-free week to maintain the proper cycle. Always consult your healthcare provider for guidance specific to your situation.