Help?!

So my breasts were killing me from 3dpo till yesterday. Almost two weeks. I thought I was pregnant because I was cramping randomly and felt a little sick. Four days ago I started bleeding 5 days early. Then it only lasted for two days. It wasn't nearly as heavy as my usual periods and my usual cycle is 32 days. This one was 27. Now two days after I stopped bleeding, I have a pain in my lower left abdomin. Do you think it's just a weird cycle or what?