You will only need progestogen therapy if you still have your uterus/cervix post-op (and also in chemical menopause or with pre-op estrogen-therapy). We recommend sharing any of the following resources with your doctor:
The American Journal of Obstetrics and Gynecology (ACOG) Committee Opinion on Hormone Therapy in Primary Ovarian Insufficiency (Specifies Recommended Hormone Dosages)
The North American Menopause Society (NAMS) Hormone Therapy Position Statement
More reading: www.iapmd.org/hrt
Visit www.iapmd.org/surgery for lots of evidence-based information and resources for those considering, going through or recovering from surgery for PMDD/PME.