Other than experiencing all these weird changes and being a bit shy to talk about them, your first period is usually very light; it might be only a few red spots or brown discharge. Your first period can be a bit irregular too but before you know it, your body will settle into its own rhythm and you will soon get used to your own menstrual cycle. It is completely normal to feel tired, body aches, cramping and food cravings too. Oh also, you’ll probably start to experience some mood swings too. These are all completely normal things to experience when you have your period.