Hi! I'm 23 years old and very confused. Here's my issue. I've been spotting and bleeding for 12 days, it started light brown then light pink. Then on the 8th day it was a medium bleed then on the 9th 10th and 11th day with a tiny clots. Now on day 12 it went back to light pink and a little orange and I have a tiny streak of white mucus on my panties. A little cramping here and there while having this. Lower back really sore and my boobs are always sore because of their size so can't tell if they hurt more. Could I be pregnant? It's been about 2 weeks since I had unprotected sex. Took 3 tests and all negative. Also felt a little nauseous throughout the first week of spotting.