Strange Month

Katelyn
Hi all, looking for some opinions. 
Last month I thought was "the" month based on my tracking and then symptoms post ovulation. I then got a period but only for two days and it was light. Since then, I've been bloated and tired. I tracked my cycle again like normal and I should have ovulated 3 days ago. Past cycles have been like clockwork. I did not temperature track this month but have tracked cm, cervical position and used an ovulation test. I've been brown spotting the last three days and my cervix is still high and slightly soft on one side, where it has been since my last ovulation. I took a pregnancy test yesterday and it was negative. 
I've never felt like I do before so not sure what's going on. Could it just be an off-month and ovulation is causing some brown spotting? 
Any thoughts would be appreciated because I'm clueless at this point!