Period, no bleeding just clots? help?

This is the third month now that my period has been off, the last 2 months I had very, very light periods... didn't require even a liner. Now I have clots and sorry to be so graphic but it's slimy gooey clots. I have never had clots in my life, beside the clots though no bleeding at all. I had a baby 9 months ago and my periods were like clockwork very soon after, I'm nursing as well and have been having milk supply issues along with my period problem, seems that with each period I have a lower milk supply. so much so I just purchased a nursing supplementer to attempt to get my milk supply back. I have had to use formula and it's been heart wrenching for me to do. Any advice is welcome- please serious replies only. thanks in advance.