If you're on Femiston, these aren't 'periods' because you are taking a synthetic progestin, Dydrogesterone. You take just estrogen for 14 days and then 14 days of estrogen plus Dydrogesterone. These are breakthrough bleeds, pills bleeds or spotting - not true periods - and as such can't tell you anything about your menopausal status. (Post-menopausal women can still bleed if they take hormones which trigger this.)
Because you are taking a combined product, it is difficult to adjust any of that. For eg, if you had a separate estrogen and progestin, you could increase the progestin. But you have a fixed ratio in this product with both E and P combined together. In addition, Dydrogesterone isn't available as a standalone progestin to add more of it in...
Is there a reason you are on oral HRT instead of transdermal? It's really only recommended now if you can't tolerate or absorb transdermal HRT. There is an increased risk of blood clots and an adverse effect on lipid profiles (cholesterol) etc with oral. In addition, you're on a synthetic progestin there - not body identical progesterone, which is now considered first choice and better/safer.
If you don't have reasons for being on oral HRT, you might want to ask to switch to transdermal (patch or gel) and utrogestan.
If you want to stay on oral, you could consider Bijuve which is body identical E and P although oral - and more P could be added with additional utrogestan P, if needed.