From my readings, and experience I think, all new possibilities have opened up fro Thalassaemics. Yes, they can have children. Obviously risks will be there.. but those risks are no different from any other normal pregnancies..
If you are in good health.. with proper Hb levels.. proper iron levels... then what is the problem?
But one has to see a high risk OBG.. who will work together with your Hematologist...
In the USA, my experience is, some doctors will discourage you because they have no experience in handling a Thal pregnancy.. while in some hospitals.. I have seen Thal moms...
Dr. Giardina of New York Prebestrian Hospital.. is well experienced in Thal... so is Dr. Allen Cohen.. these docs will def. encourage you to have children, provided you are in good shape...