Missed period?

Last month I was suppose to get my period around oct 27 but instead I got dark brown discharge on the 23. I thought it was the start of AF but it never go heavier and it lasted 8 days. Only wore a panty liner because it was only like a drop or two. Does this mean I didn't ovulate? I still haven't gotten my period and now my app can't predict my next period. Just frustrated. 😤 I also took a hpt and it was a bfn. 😫 Anyone experience ha before?