Hi, I Feel As Though I Could Be Pregnant. For

Hi, I feel as though i could be pregnant. For the past couple of weeks i have been extremely nauseous, tired, had an insane craving for siracha (i took it everywhere!), extremely emotional and HUNGRY. I was about a week late from my period when i took a pregnancy test and it came back negative, but i havent been able to shake the feeling. 3 days ago i had light brown discharge and before that i was having white discharge, but the brown stuff was really throwing me off! And then last night, my husband and i we're getting intimate and i starting bleeding. Its almost like a period but its dark and very light, it also has the fleshy chunks in it (yuck).Anyways, I'm really not sure what to do here. I dont know if i just had my period 2 1/2 weeks late or if I'm pregnant. Any input would be nice!