Please help!

I went off the pill November of 2015 and since then my periods have been out of whack but getting a little more regular as time goes on. As of right now, I have not had my period since March 28th. On May 27th, I went to the washroom in the morning and had started what I thought was my period. It only lasted a couple of hours and since then I have had a small amount of brown discharge throughout the day every day. I had a little bit of blood today but nothing major. I have no symptoms of anything other than feeling abnormally tired. Like extremely tired. Does anyone have any idea what it could be!?  I would take a test but I hate seeing a negative and I don't know if it is worth it to take one. What do I do!?