Hi and welcome to MM JoJo1992
They are offering local oestrogen pessaries which would be a very, very good idea and actually I would suggest you continue to use the Vagifem oestrogen pessaries for the rest of your life to help prevent urogenital atrophy.
There should be no real side effects as it is such low dose of oestrogen - sometimes there is a slight burning sensation in the first 2 weeks while it is used every day (after that you use it twice a week) but this settles once the oestrogen has plumped up and restored the whole area which makes it healthier and more resilient. This local oestrogen will also benefit the bladder which tends to suffer when oestrogen levels are low. Essentially oestrogen is the engine oil that keeps a women's body running smoothly and without it everything dries up and starts to atrophy.
Also, as you are young, full systemic HRT would be a very good idea to protect your heart and bones for the long term - so discuss this with your doctors. Don't believe all the horror stories about HRT - it can maintain quality of life and has many benefits especially if you are below 60. I had a premature menopause which stated in my mid 30s - I am now 62 and thank goodness I was advised by my GP back then to use HRT, as I dread to think what my bones would be like now. We've had several ladies visiting this forum who had early menopause and weren't advised to use HRT and by their mid 50s they have osteoporosis which is a nasty condition causing awful disability. There are many, many good reasons to have HRT until at least the age of 50(preferably 60) so, unless you have health issues that prevent using hormone treatment, I would definitely recommend you have HRT.
Read up all the info on this site to get clued up. Look under TREATMENTS to see your options and perhaps print this info off to show the doctors as it might help with discussion. I would suggest you start with a sequential HRT to allow you the chance to see if the progesterone type in a particularly HRT preparation suits you. I often recommend women try Femoston 1/10 first as it has a kinder progesterone tolerated well by many.
Do keep us posted - we are here to support you. DG x