Bleeding or spotting? I need help!

My husband and I started trying 3 months ago.  So I haven't started temping or OPKs... Just because I wanted to give it a chance to happen naturally.  Ive just used my calendar and cm as my fertile window. 
I was told in my late teens I very likely had endometriosis, but the only way to know for sure could possibly do more damage.  My mom and my grandmother both had hysterectomies before the age of 30. I'm 27 which is why we started trying.
Anywho here my issue, typically I spot 2ish days for a day or two after ovulation... I'm pretty regular despite the breakthrough spotting.  
I'm fairly certain I ovulated cd 18 based on my cervix and EWCM....as usual cd 20 I started spotting.  But this time it hasn't really stopped.  Mostly brown discharge... But it's been all over the place.
 Cd 20 it was light brown creamy
Cd 21 a little more white with pink streaks
Cd 22 seemed to be going away it was normalish cm with clumps brown tissue
Cd23 it went back to creamy brown
Cd24 it was like deep brown and watery. So much so it felt like I wet myself. (I got very emotional, not like me) 
Cd 25 today it's like the cm is gone completely but I have brownish red blood and crazy cramping...like sets of little needles or twinges not like AF cramps. And tired.... Which could quite possibly be from mentally exploring every single possibility.
I'm so confused.  I am 7dpo I haven't even had the urge to poas cause I feel like uterus is a war zone no blastocyst could call home.
Ovulation + Implantation? 
Anovulatory cycle?
Uterus staging a rebellion against a house guest? 
 
Anyone else seen this craziness!?  Help.