You can take utrogestan however you want to take it, continuously or continuously with a short break to allow a bleed, or sequentially (day 16-26). If you take it sequentially, you should be taking double the continuous dose. So instead of taking at least 100mg daily for continuous, you would be taking 200mg daily from day 16-26.
As for not bleeding for a year and all that, forget all that. If you are on HRT, you can't claim to be menopausal because you haven't bled for a year. It can easily be because the utrogestan is having a strong effect on you, or you are underdosed on estrogen... Forget about 'knowing' when you are menopausal, it isn't important. Take what you need to take to manage your symptoms and test your blood to be sure you are over 300pmol (preferably 400pmol) of estrogen to ensure you are absorbing enough for the health benefits. Who cares when you are officially menopausal...