so i think i might be prego. my last period came two days early and lasted an extra two days and my period has always been like clockwork always on the time and lasted 4 days everytime, it was always very light. ive been having nausea, tender breast, fatigue, cravings for weird foods, pains in my lower back, cramps in my hips, and ive been having to to to the bathroom alot...could i be pregnant????