Unintended pregnancy after gonadal failure chemoprevention with gonadotropin-releasing hormone agonist in women with hematologic malignancies.

Many patients who receive co-treatment with GnRH agonists (GnRH-a) during chemotherapy treatment preserve their ovarian function and are at risk of unintended pregnancies. Therefore, it is important to offer them effective contraception. Also, pregnancies occurring after cancer therapy in women who received GnRH-a are not associated with adverse neonatal outcomes.