Hi I have been on the ortho evra patch for about 10 months and have had no problems until 4 weeks ago. I had my week off and got my normal period and put my patch on when supposed too. About 4 days later I started to bleed again, I continued to put on the patch when supposed too and the bleeding didnt ease up so I never put on the 3rd patch and am bleeding heavier but I usually have heavy periods. Should I be concerned?