Why haven't i gotten my period yet? ideas?

Best advice is to see your prescribing doctor and get it sorted out before you have an unplanned pregnancy. A lot of my gfs have had similar issues when taking the pill, starting the pill, or not taking them on schedule. Hormones are tricky and your body has a hard time adjusting to them at times because your body produces hormones as well. It's just a cluttered mess at times and you end up with anomalies.