advice?

Ri
I recently switched birth control pills from Tarina FE to Junel FE. My doctor told me they were basically the same. 
I had a problem with Tarina where I would get mini periods halfway through the pack, but they would stop and the next week I'd take the brown pills (I call them period pills, haha) and have my period and all would be fine. It was annoying, but whatever. 
We switched the pill brand hoping for a better reaction. All was well until last Tuesday- the last week before the 'period pills'- and I thought I got my mini period again. 
Except this time it hasn't stopped yet and tomorrow is a full week. I started a new pack last night instead of the period pills; should I go back and finish them? Or continue with the hormones? 
Does anyone have a similar experience?