Hi Paulapo - just as I said there are no hard and fast rules for this, just trial and error. I kept going with my Utrogestan because I had been out of sorts and all over the place with hrt for a very long time (I had tried 6 different kinds none of them worked. Femeston, that loads of ladies love cause mega migraines, everol bad bleeding, a 3 months thing called Tridestra, that progesterone phase just dropped my mood to not being able to get out of bed and well Provera - I was given that the separate Premarin oestrogen and it sent my head doolally!
My side effects when I started as I said were the cramping and I had poor mood but it was very up and down, but given that my mood was pretty much rubbish for 3 years before, up and down was an improvement instead of just down and panicky, so I gave it plenty of time. Like the ladies say, there are loads who love Provera and there are loads who love Utro- you just have to let your body decide - good luck, keep us posted xx