I've been taking the pill continuously for 7 years with no breaks therefore I have no period 
after my last pill check I was given a new prescription same pill but different brand, exactly the same ingredients. 2 weeks after starting this pill I begin to have brown staining which went redy brown then dark brown, it's nothing like a full on period more like what you get towards the end except it's been going on for just over 2 weeks, I called the nurse who said the pill can't of caused this and I should see her if it continues. Has anyone else had anything similar? The only other change is that I've started slimming world 3 weeks ago and have lost 11lb but surely that wouldn't cause this problem?