Hi bella mama
I am certainly no expert but logic would tell me that you have gone deeper into your menopause so your own oestrogen level has dropped. You are on a low dose of HRT and this may simply not have enough oestrogen to build the womb lining and so there isn't anything to shed. The feelings you are getting after you start a new pack are normal PMT type symptoms most of us feel with the withdrawal of the progesterone. However my understanding is that if there isn't enough build up then there won't be a bleed - when on HRT you are not getting a period, it is simply the shedding of the uterus lining and this is why it's called a withdrawal bleed.
Elleste Duet is a carefully balanced preparation to ensure the womb lining is protected so I expect there is nothing to worry about. It could be worth having a word with your GP and possibly have a scan to check the womb lining if you are concerned - it would be more of a concern if you were getting heavy or problematic bleeding. At 44 you are wise to be using HRT to protect your heart and bones and it is generally advised to continue HRT until at least the normal age of meno (52-53). Provided you are healthy there is no reason why you should stop HRT until at least 60 - many of us plan to continue beyond into our 60s if the benefits outweigh the risks.
If you are getting good symptom relief with your current HRT then you could continue on this dosage but if you are finding flushes and nights sweats are emerging then it could be worth upping your dose a bit.
I personally don't think you have anything to worry about. If you feel good - just continue what you are doing . DG x
