Discharge

Hi all! This may be a TMI post just as a forewarning!

I am 25 weeks and 3 days pregnant today and have started having brown discharge and some cramping. I haven't done anything to bring it on that I can think of...no recent intercourse and no exams by the doctor so I have no idea what is going on. It started yesterday and was a dark tan color and now is a dark brown color and there is more of it. I called my doctor's office and they are going to check with the doctor and call me back when they can so I am waiting on that and who knows when that will be...

Anyone have anything similar or have any recommendations?? Thank you!!!