Morning after pill

Okay so I took the morning after pill and it made me bleed for about a week, just like a regular period. 
My <a href="">Eve</a> calendar is going off of my regular period that I had before that, and it's saying that I'm late. 
Should I mark that unregular week of bleeding as a period? 
Will my next period start in time with that? 
Has anyone else had this happen?