I got my period and barely bleed and normally when I get it's a lot of blood. Well it stopped the day after I started. And had started back. What could cause this?

There are several potential reasons for a change in your menstrual flow, including stress, hormonal fluctuations, significant weight changes, or changes in Birth Control methods. It's also possible that you might be experiencing a light period or spotting, which can occur for various reasons. If the pattern continues or you're concerned, it's a good idea to consult with a healthcare professional for personalized advice and to rule out any underlying issues.