Hi i normally have a 26-28 day cycle. for the passed few months i have been early and rarely ever late. i was suppose to start today but i have not. ?

Need more info.: How long are your current cycles?, Are they otherwise normal? Are you using any hormones or other medications?. Also, have you ever been pregnant or diagnosed with thyroid problems? Without that info, I can say only that very few women have perfectly regular cycles and, unless your periods are very heavy and/or long, irregular cycles would be an issue only if you're trying t0 conceive.