It's possible... if your cramping gets worse and you are bleeding heavier then you are more than likely miscarrying. This happened to me last week. It was terrible...I hope everything goes ok and you stay in contact with your doctor! Let me know how you make out!
I am experiencing the same thing, woke up this morning with slight cramps brown discharge that turned into snot like blood, after a little brown discharge came back with a little bleeding. I am 11 days late on my period.