Hello my name is Erika I'm a teenager I'm 15 years old. I got my period on the 13th but was suppose to get it on the 18th it was a early and it only last for three days. On the first day it was dark blood like brownish and for the next two days I was just spotting. Since then I been feeling nauseous, back pains, breast pains with the veins starting to pop out, I eat more then usual, I be tired more then usual, i have stomach pains, a lot of mood swings, and right now it feels like clear stuff coming out of my vagina but not much only a little bit not even a drop just a tiny amount and I also have to pee more than usual. I took a pregnancy test and it came out negative but I still feel all this pregnancy symptoms. What could this mean? Could I be pregnant?