evra patch question

[threesypeesy]

been on patch for 7 months now and everything has been fine until now.....

2 weeks ago i was due to start my 2nd patch of this cycle i was 2 days late due to child being in hospital. put patch 2 on 2 days late and had a period rather heavy while on 3, 2nd patch now on 3rd patch of this cycle and having pink discharge
whats going on

Same thing happening to me! Fine for ages now random breakthrough bleeding been on it for 3 years with few breaks