I have a feeling I'm out this cycle

Savanna • Mommy to a beautiful 4 year old girl, married to the love of my life almost 5 years.
Cycle #8 trying for #2.  Last cycle I spotted for 6 days before AF came.  Today I am 11dpo and yesterday there were a couple of brown spots when I wiped.  This morning pink spots.  I have no faith in spotting since my experience last month.  I have stage 4 endo and had surgery in June 2014 for it.  Went off BC in August, but didn't track or anything.  Started OPK I'm January and temping this month.  I feel like I will never be able to give my daughter a sibling and it's breaking my heart 💔I know I'm not out until AF fully arrives but I'm sure this spotting is a precursor for AF.  Just wanted to get my sadness out somewhere and ask if anybody has conceived with high stage endo?  Thanks 💔