BROWN DISCHARGE WITH specks??

I have been having brown discharge for about a week. I have rough sex with my boyfriend which I feel like might cause it, but the last time we had sex was 2 days ago and I'm still having the discharge. I doubt I am pregnant because I am on trinessa birth control pills (for around 7 months). Could it be an std? Or bv? I have no symptoms of pregnancy or std... But the brown discharge worries me. I have been off my period for almost 2 weeks..so I don't think it's old period blood. But I have no idea. Please help!!

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http://buddymd.com/brown-vaginal-discharge i looked up the issue you have i sent a link that my help u if this helps let me i hope you feel better god bless you and your family