My period was due Tuesday at the latest, I never go over 28 days but alot of the time I can go 26/27 days so couple before I'm due. I STILL haven't had it although I've been had extreme PMT for nearly 2 weeks , I feel like I'm going to have one sporadically but it's not coming. I did a test on Thursday, I wanted to stick my head in the sand like normal but we came on holiday yesterday and really needed to know before I started drinking ect... It was a boots own brand and was negative . The only time I've ever missed a period is if I was pregnant . I've been reading up on it and I know stress can be a major factor but has anyone skipped one and not been pregnant??? Heeeelp me!!!!!