Spotting - Anyone?

I've had spotting on and off since the 4th June. It first started after sex where I would get a pink smear on toilet paper and then brown for a couple of days. Had to stop having sex with my hubby just incase, had one day of no spotting but then had exam from Dr and have had brown spotting since. Have urgent gynae appointment in 3 days but don't know what to expect. The volume hasn't got any worse and I don't seem to be having a lot of cramping. 
Has anyone experience this and been fine with a healthy pregnancy?