Hello ladies. So the same day AF was due I had a small amount of dark brown spotting. Thinking it was AF, I put a tampon in and went about my day. Normally I use about 3 to 4 tampons during the first day of AF and the blood is bright red and very heavy for the first 3 days, then it trickles off to almost nothing until day 5 when it ends. The issue I'm having is this... i had this same scant amount of dark red blood for 4 days, never heavy at all and never red, always less than 1 tampon for an entire day and always brown. I'm hoping with all my might that it was IB but I'm 26 dpo and am showing a bfn on my hpt... any ideas?