Your IGg is positive for rubella
but it means you have antibodies
It simply means you had infection in the past and has no meaning now.
In fact doing torch panel test just after one miscarriage
is totally use less as positive torch rarely causes miscarriage more than once.
You don't have any problem and can easily conceive in future.
It is only IgM which if positive means current infection and that may require treatment.
If any doctor treats you on the basis of your current reports,switch the doctor.