Af? Spotting.... not sure.

So af was due today. On Friday (11dpo) I had spotting ranged from pink, red then brown. By Saturday it stopped. Took a hpt Sunday and today bfn. (Although today I swear there might be a shadow:(() Anyways bd'd this after had red spotting thought "hey af there you are, time to start again".... anyways it stopped after about an hour.... so 2 days no af yet.... anyone ever had something similar and get a bfp later on?? Thanks.