Hi
I'm not in your age group but I feel your Oncologist is stating the obvious, everyone has the right to refuse treatment, in your case the hormone blockers. If your cancer is hormone positive, there is a major risk to you if you become pregnant. Ask your Oncologist about the hormones that pregnancy produces and then assess your risk. I know it's a bummer but you need to be fully informed in order to make a decision that you are happy with. Some of the treatments can put you into early menopause, others are more gentle. Investigate and ask questions until you find one that suits your requirements. With decisions as big as these you need to be your own advocate, and for that you need to be informed.
With love
Joy K