... almost every night) I started the patch process the week before my period started and I continued throughout the week my period normally arrives. . The forth. week came and I kept the patch process going. Only problem is I got my period and I'm cramping?? But I have the patch on... Any reasons or explanations to this and any suggestions? In the 4weeks the patch came off a couple times either in the shower or just at random and. I did replace with a new one. I don't know if that helps