Brown discharge

Hey everyone! I would love some advice from people who have been pregnant.

I did the deed while ovulating in August , and the guy finished inside of me. I was super nervous about it , but then I ended up getting my period. It was a week early , and it only lasted 3 days , but I thought that it meant I wasn’t pregnant. I was still a bit worried though, because I was having tons of thick white discharge that was abnormal for me.

Then today , I go to the bathroom and notice that I have a ton of thick brown discharge in my underwear. My period isn’t due for another week.

Could this mean I’m pregnant?