So, what do you mean? Are you on birth control pills now? Or are you trying to decide when to start them for the first time?
Oh, I see your other question and remember now. Sorry! I do think since you still have a period, you can start the mini pill now. They say you aren't safe it is 5 days after your last menstrual period or more but you are still menstruating. If you want to be REALLY safe, use back up birth control until a full cycle.