Birth control throwing off period??

I started birth control for the first time when my period last started (feb. 5, I believe). It just started again yesterday, a little over a week later! Has anyone else had this, and how did it work out for you? Did they even out eventually or did it become the norm? Also my moods have been OFF THE WALL since I started BC. My poor boyfriend, bless his heart.

Ps, it's the pill without estrogen if that makes any difference.