Some offices, if you call them to let them know the reaction you are having, will call in another for you to start w/o having to make another office visit; ask them to call something else in. If you don't want to wait until next year call them. If you don't want to have another visit and they require it, decide from there but most offices know these things happen with some pills.

A cycle that is irregular is annoying but is not uncommon and still healthy. Unless as mentioned above, you have pain, abnormal bleeding, discharges, distension of your abdomen, etc. So with whatever you decide, GOOD LUCK!