About blood transfusions, babygirl.
Your boyfriend is only partially correct, but he is quoting the Watchtower policy perfectly. It is like this. Jehovah's Witnesses believe that taking blood is against bible principles. They are willing to die for those principles. But most sincerely hope that medical science will be able to save their life regardless, with blood replacement therapies.
What the Watchtower doesn't explain, is that this religious stand IS a life-and-death matter. It should not be downplayed. How are cattle killed? Their throat is slit and their lifeblood is poured out. It is a merciful and FAST method to kill an animal. For elective surgeries like breast enlargement or appendix removal, modern medicine can accommodate the Jehovah's Witness beliefs; they can have surgery without blood AND the patient lives.
However, if your boyfriend, heaven forbid, were ever in a car accident and one of his arteries were torn open, he would die without a blood transfusion. That is a fact.
If you want a family, you should discuss with your boyfriend if he will allow your children to have a life-saving blood transfusion. Don't let him skirt around the issue. Could he allow his own child, or you, die in front of him for his bible-based beliefs?