Is normal for you period to start eight days before the estimated date?
Answers: If it is always 8 days before - it is regular - means OK. Read more in http://www.menstrual-cycle.info/6-Menstr...
Be Healthy and Happy! .
sometimes...they don't always come as planned if you just started (you arent regular) you could have a shorter cycle then you thought. Hope This Helped =]