Hi spidergirl
Lovely to hear your news and so pleased to hear that all is progessing well for you regarding preparations for IVF treatment
Re the HRT - I think you need expert advice here from your gynae. It is a tricky one this. Most women at your age would be experiencing a cycle alternating between very high oestrogen levels at ovulation (much higher than you will be getting at the moment) and high progesterone in the second half of the cycle, before the withdrawal bleed.
Most of us on HRT with a later menopause replace the oestrogen with a constant much lower level, and put up with some of the aches and pains that don't entirely disappear on these lowish doses.
The other thing is you are on a continuous dose of a progestogen (although I think the pill also contains for 3 weeks of the cycle - not sure of this), which again you would not experience naturally.
I am sure there is a recommended type and level of HRT that is best for trying for IVF with early menopause so hopefully your gynae will be able to recommend accordingly?
However if it were me, I would want to be thinking about much higher doses of oestrogen (that you would normally experience), and starting up a cycle so that you are not taking progesterone all the time. The low oestrogen and constant progesterone could contribute to your aches, pains and anxiety.
I don't know whether any gynaes prescribe such treatment eg 1 week of medium oestrogen, 2 weeks high, 1 week low or something like that, with 10 days of progestogen to coincide with the lower oestrogen levels. You would get a monthly cycle then and all the associated mood changes - but that may be prefereble to constant low mood and acheyness. There is an HRT that mimics the cycle a bit called Cycloprogynova ( in menu on left under peri-meno HRT treatments) but has 7 tablet free days which I wouldn't do in your position.
Another possibility is gel or patches - gel is easier to tweak the dose, and the oestradiol does go straight into the system but you may think that is a bit of a faff every day for many years!
Also have you been tested for tesosterone, since without functioning ovaries this is likely to be low so will also lead to tiredness, low mood etc?
I wouldn't really want to increase the amount of the HRT you are on, simply because you are also increasing the progesterone - but you may want to try this.
Hope this helps and wishing you the very best in your treatment!
Hurdity x