I started my birth control pills about a month ago either on a Saturday or a Sunday, one day I came to take my pill and it was a Sunday but when I looked at the pack the Saturday pill was still there but I remember taking a pill on the Saturday so my guess was that somewhere along the line I have missed a pill, when I was on my one week break my period came however I'm due on to start my next pack but I'm not sure whether to start on the Saturday or Sunday. My last pill was taking on a Saturday. Any suggestions on what to do?