Cycle change due to the pill

Brittany • I`m Brittany c: Singing, photography, art, and being simply me c:

I started taking birth control pills in October and I really like them!

The only thing that kind of freaks me out is when my period doesn't come on the first day of the sugar pills.

My last period came on the fourth day of the sugar pills and ended three days later (I am use to my period being seven days long).

So is it normal for the pill to make your period come a little later than usual?