Smelly discharge at 31 weeks

Hi everyone, so I've been feeling some smell either my vagina or the discharge. I was at the er on Monday due to some brown discharge, and baby and me are good, and no broken waters. I'm not itchy or in pain. My vagina gets some cramping for a couple weeks already, I'm guessing baby is pushing down as baby is sitting low and head down. But nothing. The smell is not fishy or bad or aweful, is just smelly but not sure at what. I've been getting a lot more discharge, and still some brown discharge to. So not sure if it could be normal..??