I've been using Ortho Evra (birth control patch) for a little over a year and so far I have never forgotten to change the patch every third Sunday. This week was very hectic and it completely slipped my mind.

I was supposed to change it on the 12th, but I put a new one on last night, (15th) as soon as I remembered.

What worries me is that I've had sex that sunday and then again the tuesday night, and wenesday morning. So maybe a change of pregnancy? Its right in the middle of my time for being fertile, so yeah. I am a little worried.

Should I still change it next sunday?
Am I still fullu protected since the patch was changed late?
Any other advice?
Thanks.