Has anyone had same experience

Last week on Thursday I started having very uncomfortable and strong cramping pains, I took an ovulation test and it was positive so I looked up some stuff and read that you can have pains with ovulation. Ok so ovulation over and now since Sunday my boobs have been very sore and tender. AF not due till next week on Friday. What could be the reason for my sore boobs and random cramps that come and go???