The BMS guidance which was published about 18 months ago was to reset advice for GPs, based on some women on high doses of estrogen experiencing some erratic bleeding or in some cases, hyperplasia. The report was produced partly as a result of Dr Newson's clinics prescribing high and unlicensed doses of estrogen.
The guidance is that for high levels of estrogen, 'consider' 200mgs Utrogestan as part of a continuous combined regime.
'High' is 4 pumps of gel or a 100mcg patch.
Higher (but not 'high) is 75mcgs patch or 3 pumps of gel.
None of this is mandatory but as GPs aren't usually as knowledgeable as specialists, they tend to stick to 'guidance' without taking into account individual side effects and responses.
You'd usually know if you needed more progesterone as you'd have spotting or very heavy withdrawal bleeds. These tend to be a sign that adjustments need making.
Your GP should be balancing any side effects from the dose of Utrogestan, with keeping the endometrium thickness within the guidelines (either on sequential or continuous.)
It's not a one-size fits all. Your GP should be having a conversation with you about how you find Utrogestan (any side effects etc) and any bleeding that is erratic or heavy.