I have long lasting heavy periods. im on progesterone until my hysterectomy next month. why is it making my period worse? obgyn said it would stop it.

Thin endometrium: Progesterone makes the uterine lining stop growing and get mature so there is less lining to bleed off. If you have bleed down to a thin endometrium (i.e. Raw) it won't sot the bleeding and can make it worse by opposing your body's estrogen which is trying to make it grow(i.e.heal). Talk to your doctor about choosing a different medicine. You don't want to loose too much blood before surgery.