Hello Luana,
I think your health should be good if you plan to get pregnant. I hope your ferritin levels are low. You will have to get in touch with your doctor to plan for pregnancy. There are a lot of Thal (Major) women who have started marrying and living a normal life with having their own biological children.
You can read more about Pregnancy for Thal (Major) at the link here
http://www.thalassemia.org/updates/Pregnancy2.pdfOne part of that document is pasted here for reference
Make sure to get your hematologist's blessings before trying to conceive. You will need their help and support throughout the pregnancy, so get them on-board from the beginning. This is
especially important if you have complications from thalassemia (cardiac, endocrine, hepatitis C or HIV).
Get yourself in the best possible health before conceiving, because pregnancy is stressful on the body. Get your ferritins as low as possible, preferably below 1000, because it is better
to avoid chelation therapy during the pregnancy, and in the first two trimesters, the ferritins will start to rise. Be prepared for more frequent tranfusions. Although it didn't happen to me, it has happened to other pregnant women with thalassemia.