I really need help. Before my last sexual encounter with my boyfriend, the last time we had sex was about 3-4 weeks before my last period and bout 6 days before my my period was suppose to start, I started to discharge a brown-colored substance from my vagina with a very light, small part of blood, it lasted for about two days. Then, 3 days before I was expected to start, my full period began(3 days early). That was odd enough for me, but as my period was ending, I started noticing a very smelly, dark drown discharge. I know the smell of my body, and I know that wasn't normal for me. I've been experiencing a little bit of nausea at least once a day since then and now i've noticed a very thick, smelly, white discharge. Kinda reminds me of boogers(haha). It's kinda scary to me... My boyfriend and I have had unprotected sex and about a day after our last encounter, was when the white stuff appeared. I know that this is a lot of info but i want to give all the info i can to try to get help to see what it is. Can i be pregnant? or have an infection?