implantation or nah?

So yesterday I had spotting of a red/pink color like if blood were mixed in with clear or white fluid. It was just the one time I went to the bathroom. Hours later I had this pain on my right side where you'd cramp and it was bad.  Later on that night I had brown slimy looking discharge and it was there a few bathroom visits. Followed by cramping and a pain on just one side that would make an appearance very frequent. Oh and my breast feel like they want out of this world, they hurt like hell mostly when it's cold.