"i&#039;ve been on the patch for over a year now. i have had no side effects, but i&#039;ve never had a side affect with any medication i&#039;ve ever been. i have had a couple pregnancy scares, thankfully all false alarms. i went  on birth control to regulate my period and it has worked wonders. i have got my period on tuesday every fourth week since the first time month of being on it, that was why when i didn&#039;t get it at all the one month i thought i might have been pragnent. the only down side i have found to the patch is that there are lots of places i can&#039;t put it,( my butt, under my bra, my hip) any place that clothing would rub up against on a regular basis, so in the summer trying to find somewhere it won&#039;t show on my bathing suit is hard."