Some breast cancers can be stimulated to grow by the female hormones, estrogen and progesterone. If your cancer is ER+ or PR+ you may be required to use anti-estrogen drugs to stop the body from producing this hormone.
Hormone therapy is typically started once the initial treatments have concluded. This may occur before an ovarian ablation is completed.
Your ovaries may have been damaged from treatment, and if you require ovarian ablation you will be placed into surgical menopause. This can be a much more difficult transition for your body than natural menopause where your estrogen levels reduce over time.
Talk to your medical team about being referred to a menopause specialist, who can help you better understand what options are available to you.