Bloody discharge? Help

My period isn't due for a week or so according to the app but I have irregular periods so I don't know when it will actually come. I noticed yesterday that when I wiped I had very light pink/(maybe slightly orange?) and that was it. It hasn't made it onto my underwear. It was lighter today. I've been having a lot of breast pain as well starting on December 27th up to today. I noticed yesterday that the pain subsided yesterday slightly. Any advice on what it is?