Period whilst using the patch?

Hi girls, I had a period 2 weeks ago and I've woke up this morning back on my period. It's very light and the cramps aren't causing me too much hassle but I didn't think you could bleed on the patch. I was under the impression it stops your periods until patch free week? Is any able to give me advice please as I'm majorly confused!

Do I take it off and put on a new patch? Or is this normal? Thank you guys xxx