Is the occurrence of withdrawal bleeding when using Evra earlier than usual a cause for concern?

Hello, yesterday I peeled off the third Patch Evra and wait for the period usually gets it on the third day after peeling off, while today I was having intercourse and after finishing I saw blood, could this be a reason to worry? I will add that the patches I try to stick at the same times, and be responsible. Thank you in advance for the feedback.