My period was early and a tiny bit lighter last month, but this month it was light and short when it's usually heavy and 7 days? i'm a virgin. normal?

Irregular periods: Irregular periods are one of the most common problems OBGYNs treat. If this is one-time problem it usually resolves on its own. If this is a recurring problem you should be evaluated. Infections and hormonal changes can cause spotting. Exercise, weight loss, and stress can change your pattern. There are many options available to help regulate the menstrual cycle. Schedule a visit.