This is a great time to start charting your menstrual cycle. Charting your cycle can help you to better understand your body and how it works. Here's a chart that I found online and edited (Click here to see the original). You can print it out or save it and use a program like paint to add in your information.
Here's some helpful information on how a menstrual cycle works. I found it here http://iheartguts.com/uterus
Happy menstruation everyone!