Ok, so first this is the longest cycle I have had in years, I'm currently on CD 34 BUT I do think I just O'd late. I have been getting BFNs for the last week, not surprising since I think I'm maybe 11/12 dpo today. Yesterday 10/11 dpo I had brown spotting after a (tmi) BM. I thought AF was starting but it didn't happen again the rest of the day. Woke up and no AF, went to the restroom again a bit later and again had the spotting after a BM. The spotting is really dark brown and not anything I've ever seen before. Usually my pre-AF spotting is pinkish red. I'm trying not to get my hopes up as it's been almost 2 years ttc but could this be IB?