Am I losing my baby?!

La

So I have been having brown discharge for 3 days now. It was only when I wipe at first but now it comes out in a tiny amount when I pee. I was told not to have intercourse and no exercise for now which I have avoided both. However, I did do a lot of walking two days ago and the discharge has been there ever since. I don’t want to ruin Christmas by sitting in the ER all to be told the dreaded “M” word but I also need reassurance. I had a “M” word once before and it was horrible. I’m currently 11 weeks and 4 days. Any suggestions?