Is this normal?

I’ve been having brown discharge for about 5 days now, sometimes it is a little red or pink but I’m not supposed to start my period for another 11 days. It seems like sometimes it’s clumpy and I’m just not sure what’s going on. I had taken my birth control late for like a week and then had to take 2 one day to catch up and not sure if that has anything to do with it.