Is spotting in the first months of contraception a reason to talk to your medicine?

It uses the first month of evra patches, the month lasted a week, but later bleeding has not disappeared, it appears practically every day. With him, breast pain, but it is understood that there may be a side effect at the beginning. Is it right or is this a reason to consult a doctor? I start 3 patch, and do not know if after a break continue this form of anti-ticpnception