Not sure about making sufficient progesterone post menopause
"While a woman's estrogen may eventually drop 40-60% below her baseline level by menopause, her progesterone level can drop even more dramatically. Although the adrenal glands still produce some progesterone, the decline in progesterone upsets the body's natural hormone balance. Following menopause, a woman's progesterone level drops to nearly zero"
sue23 trying utrogestan if you have had an hysterectomy would be like using a hammer to crack a nut, with or without your ovaries, far too high a dose.
Many women on for example on hystersisters.com use estrogen of their choice and natural progesterone cream if they want to supplement progesterone, men make progesterone too, but a women after menopause makes practically none, many doctors think that even if you have had a hysterectomy its wise to supplement progesterone with estrogen to obtain a balance as progesterone has many roles besides limiting the build up of the womb lining.
Its a personal choice if you have had a hysterectomy whether you use it or not though. You may feel better on estrogen alone.