On the patch should I be worried!!!

Erin

So since I had my 6 week check up from have my daughter in may I have been have my period before it was time to take off my patch then this months I didn't start until 4days past when I was supposed to take off my patch but this PERIOD WAS NOT NORMAL AT ALL ONLY POTTED FOR 3 OR 4 DAYS AND THAT WAS IT now I was worried to but a new patch on anyone had this problem with the being on the patch before ??