Quoting Jenna 2012:" Are you familiar with pcos? One of the issues with it is difficulty becoming pregnant. And if a person ... [snip!] ... of me getting pregnant. Some cycles i don't even produce am egg. It's called an anovulatory cycle. Pcos is rare and it sucks."
i have done some research on pcos for my sister.....thats why i mentioned possible ovulation bleeding. It could be a sign that you are having a relatively ''normal'' cycle this month. Sorry u have to deal w/such a miserable issue but you already have proof that u can have a normal cycle pop up unexpectedly