Hey Pricey,
So a couple of things to consider. Firstly you do not know how you're body will react to the change of regime, so it is hard to give you definite rules as to what to do but as you have read, things to consider are feeling groggy on utrogestan. Please bear in mind your spotting may continue although I had plenty of spotting and bleeding on Evorel which stopped on oestrogel and utrogestan. It will take at least 2 months to settle into the new regime and you may feel a bit weird on changing over...everyone is different. I had 6 kinds of hrt before I got to gel and utro which has been the one and only thing which has worked for me and works just fine.
Forget that your GP hasn't heard of using it vaginally, loads haven't but it is a well known method and perfectly safe. Lots of us ue it that way on the forum, myself included.
Orally utrogestan can (not for everyone, you could be lucky) have a sedative effect which some women like because you take it at night and if you have trouble sleeping its good. However, as you have read it can make you feel groggy in the day. It goes through the stomach and the liver taken orally and so that can increase the side effects (if you are going to get any - the only way to find out is to do it).
Used vaginally it is absorbed straight into the uterus, vaginal lining so side effects are less or non-existant.
The gel is best put on in the morning - some ladies split the dose - I don't and unless you have any obvious problems I wouldn't start splitting it (ladies usually have come to conclusion about splitting the dose after much experimentation over a period of time) because you are just starting out - see how you get on 2 pumps in the morning - utro at night.
I knew I had problems with progesterone so I never even bothered to try my utro orally I went straight to vaginal. The only issues I had with it was cramping during the utro phase for the first 3 months which went away and I get a little bit tearful during the utro phase.
Ref the 80gm pump, yes she has only dispensed you one month of oestrogel - not sure why? maybe it is because you are starting off an she expects you to go back for a follow up?