Hello
Thanks for writing to DoctorSpring.com with your health concern.

Abruptly stopping the cream could result in a period due to progesterone withdrawal, but for this purpose ( inducing a period ) , progesterone tablets are much more reliable.

When taken for 5 days and stop, a period is induced within a week of stopping.
Using the cream permanently should result in no period technically, but many women experience some form of breakthrough bleeding or spotting.
For the adenomyosis , which is generally estrogen dependent, it would get better once you transit to menopause.

The cyst - I need details regarding what type of cyst it was.
It is not recommended to take the progesterone cream continuously or permanently just for the sake of preventing a period, there would be associated side effects.
It is best to use it for symptomatic relief of hot flushes ( not for inducing periods and neither for avoiding them ), and allow your normal menstrual pattern to resume and take course.

Once you transit into menopause, periods will cease in due course of time naturally.

All the best
Please feel free to discuss further.

Hi
A chocolate cyst is a variant of endometriotic cyst.
It occurs due to estrogen excess, and is not related to the presence or absence of a period.
The menstrual irregularities and delays are due to your approaching menopause, having a period a few days late or early would not contribute to the formation of a cyst.
As menopause approaches, adenomyosis and endometriosis ( the chocolate cyst ) should only get better.
Yes, you can use it from day 6 - 26 to bring on a period, just for cyclical regularity, not for the scare of having a cyst.
Take care.