I had a baby a year ago. I bleed for five or six weeks after birth and then had no period for several months like five or six I believe because I breast fed. I had a few normal periods then had one after six weeks very very light spotting for about a week. Then five weeks and maybe a few days later had a very heavy period very unormal for me. Now a few days maybe a week tops I started spotting very light though almost unotciable. Any ideas as to what can be causing this? Should I go see a doc? I know it's not breastfeeding I stopped breastfeeding about four months ago.