Hi Lemonade, i'm so so so sorry you are going through this
i just wanted 2 say, I have 2 children, after my daughter was born i bleed for about 2 weeks & my son was (longer than normal) about 8 weeks. I think up to six weeks is normal postpartum.. which as the others say, is probably more suited to your situation. I had early preg loss & bleed about 10 days.. Everyone is different.
There is something you could try to help regulate your cycle if you really want to ttc & its called Dong qual.. It's been highly recommended to me. I hope I have helped u in some way. Thinking of you x