Yuperdoodles! That is your period! If it is that light you might just need to wear an extra light pad or even just a panty liner. Just ask your mom, and dont be nervous because it is completely normal! If you would like, for the cramps, you could just put something warm near the spot it hurts (like a heated up water bottle or something like that), or you could take some pain meds (but be sure to ask your mom or dad before taking the meds).