Hi Lauren
I think if anything you may have a slight yeast infection or something, but i doubt its anything to worry about.
Unless you get blood and severe pains then try not to worry about possible mc.
I keep getting brown discharge and had a little bleed the other day but it was nothing to worry about and im fine now.
My brothers gf suffered water infections and stuff all through her pg and the baby was fine. I would just get it checked out with your midwife or gp. If they are concerned they will take a swob of your cm and send it to be tested.
Try to relax and stay calm

and keep us posted x