Spotting

Melissa • Isaac 09/09/2016👶💙

I've been taking the same contraceptive pill for the last 7 years apart from when I was pregnant with my son. After I had him I went back on the same pill and have been taking it again for the past 2 years. I've never ever had a problem with it until yesterday when I noticed some brown spotting which has never happened before. Has anyone else ever had this? What could it be?