My cycle is messed up

Hi, 
I'm going to go chronological order.
1st week of dec: took birth control pills until friday. (Hormones were fucking me up! Twas terrible. Random crying/sobbing, and aches)
2nd week: i stopped, then got my period the next week. I had unprotected sex (no ejaculation) that week and took an emergency pill within 24hrs. Also got fired from my job. Took a toll on me.
Week 3-4: got my period again. And had unprotected sex. (No ejaculation) Did not take emergency pill until 10hrs before the third day was going to end.
Week 5: got massive cramps and heavy period. Suddenly stopped on new yrs day.
Whats the dealio?!