NuvaRing - I counted the weeks wrong and took out the nuva ring exactly a week early. I took it out?

Put one in, and be sure to use a condom for a week because taking it out early comprimises your protection. Leave the new ring in for the full 3 weeks, you'll skip your period, but that's totally ok. Then mark your calender when you take it out and when you put it back, but it in your email calender to remind you.