Hi Coco62
The window of opportunity for starting HRT (under 60 or less than 10 years after menopause) is supposed to be the safest time in terms of changes to the cardio-vascular system but as far as I recall was due to some specific research (sorry can't remember right now). In addition it is recommended that those who have an early or premature menopause should take HRT at least until the natural average age of menopause ( around 51/52)
Ideally you should have been started earlier, but never mind - you have started now! Hopefully you will start to build bone again to help prevent osteoporosis. Not everyone gets osteoporosis anyway but you might like to ask you doc for a bone scan just to check your bone density, and explain that you didn't have HRT?
One question - have you been given patches because these are recommended for women in your position, as being safer than tablet HRT?
I hope you are feeling better as a result of starting HRT and do not worry about the years when you didn't take it and long forward to ageing healthily. Lifestyle and dietary changes also play a big part in our health as we age so if you havent already made changes (exercise, body weight, alcohol, smoking, diet) then now is the time. Apologies if you are already doing this but felt I should also mention this.
All the best
Hurdity x