Bleeding possible miscarriage?

hi,

im 7wk3days and I've been bleeding although not heavily for 3 days. it ranges from red and mucasy to brownish and creamy??? I've had some cramping but nothing particularly major. I still have the same pregnancy symptoms as I had before like bloating and tender breasts. So confused as to what may be happening!! I have a scan in two days but the situation is driving me crazy with confusion. Anyone else had the same thing? TIA xx