I've been using Nuva Ring for about 6 years now and I only recently learned that I can use it continuously to avoid the withdrawal bleed, so I've started that regimen. I have one question though. I've heard that the regimen goes: 3 or 4 weeks of the ring in, remove it and then put another one in right away (I get that part), and then after like the third cycle of this (third month or so), you leave the ring out for a week (like you would for a normal cycle with withdrawal bleed).
Can anyone tell me why you would need to leave it out for a week? If the point is to avoid the withdrawal bleed, why could't I do that forever basically?