Spotting?

So I just woke up this morning and went pee and when I wiped I noticed I had what looked like dark brown blood on the toilet paper but it was barely even noticeable. Even when I went back an hour later to check there was still a little more when I wiped. I don't think I could be pregnant because me and my boyfriend always use a condom during sex, but it might be a possibility?? No other symthoms other than feeling like absolute shit (but I assume it's from working overtime at a stressful job). Ideas anyone?? I'm not supposed to get my period for another week and a half too