Ive been using the patch for over a year now and its been great until last month I put on my patch on week 3 a day late and got my period , when I took my patch off the following week for my patch free week I continued to have my period there fore I had it for 2 weeks straight, that was fine I taught it was a once off. This month the same thing happened , week 3 I replaced my patch (on time) and got my period 2 days later and now have them for 2 weeks again. What does this mean? What will I do?