What type of blood would you have if both your parents have RH blood type?
Rh is not a blood type by itself but is just one part of what
makes up a blood type. There are two parts to blood typing: the ABO
aspect and the Rh factor. One has blood type A, B, AB, or O, AND
then is either Rh positive, or Rh negative. Hence why you hear
blood types like A positive, O negative, etc. The positive/
negative is referring to the Rh factor.
Rh positive is dominant, so one only needs one Rh positive
parent so be Rh positive. Rh negative is recessive. If both parents
are Rh negative, the child they have must be Rh negative as
well.
To know what blood type you could be, you need to know your
parents' entire blood type.