I would have thought (in my completely unprofessional opinon) that it is unlikely if you have not been having periods, however that doesn't mean it is impossible. I just find it strange that if a Dr has said you were miscarrying then you should have seen evidence of that - but then stranger things have happened I suppose. Yellow discharge can sometimes also be a sign of infection - but again in some women yellow discharge is perfectly normal. This is what is so frustrating with us women, we are all different and there isn't really any such thing as "normal".
Please let me know how you get on when you go and see the Dr, I really hope that you get the result you are hoping for :)
THANK YOU, could you plesae tell me if its possible that i could have fell pregnant again?
If you've not had any bleeding at all despite the Dr thinking you were miscarrying then I would advise that you go back to your Dr for another ultrasound to make sure. If you have had a missed miscarriage (one where the fetus stops developing but the body doesn't expel it) then this will need to be dealt with as there is a high risk of developing an infection.