I think I did. I started my new pack of pills last Sunday... but I think I started it before my period. I GOT ANTSY!! So I started them before my period... because I was going through the motions of PMS like being uber sensitive and tender breasts and all that... but then I'm almost positive I started before it could so maybe now it threw it off?
So now I don't know whether to just finish the pack and wait until my period to start the next one... or what... my mom said just to finish it, but I'm worrying about it. Any advice?

Just finish it. If you stop and then start again you will throw your hormones way out of whack. Just understand, and don't be scared, that you most likely will not get your period until this pack is finished.

But, yes, finish this pack then get back on track.