If you still have ovaries pregnancy is possible. However, if there is no uterus for the baby to grow in, the pregnancy might not be viable.
This is something you might want to discuss with your doctor. Your doctor would be able to explain exactly what was removed during your hysterectomy, what that means as far as your fertility is concerned, and what your options are.
Whenever you have a medical procedure done, you should walk out of there knowing exactly what was done, why it was done, and what that will mean for your future. Never be afraid to ask your doctor, nurse, or ob-gyn any questions you might have.
You can read this for more information:
http://www.amazingpregnancy.com/pregnancy-
articles/546.html