Hi hun,
i know its hard but try not to worry to much spotting is quite common in pregnancy and dosent always mean bad news, in one of my previous pregnancys (not this one)i had brown spotting never enough to wear a pad it was only there when i went a loo and only doing big jobs

the midwife told me its due to the straining when u have a poo and nothing to worry about it happened to me at 6 weeks and again at 9.
the scan will hopefully put ur mind to rest, but its good to get checked out!
ill keep everything crossed for u xx