how do i know whether i'm supposed to wear period underwear, or a pad on certain days of my cycle?

Okay so basically, you can wear period underwear or a pad whenever you want! It's all about what feels right for you and what your flow is like on different days.

Period underwear is super cool because it literally looks and feels like regular undies, but it has layers that soak up your period blood. Pads are awesome too, and you just stick them in your regular underwear. Both are great for catching your period, especially when you're first starting out, because you can see how much you're bleeding. It's really just a personal choice. I know some people like period underwear for lighter days or when they're sleeping, and pads for heavier days or when they want to change them more often. Some people just stick to one or the other the whole time.

To figure out what you like best, you can totally experiment! Maybe try period underwear on a day you think your period will be light, or a pad on a heavier day. You'll get to know your body and your flow, and then you'll know what product is going to make you feel the most comfy and confident. No biggie if you change your mind later, either!