Hi!
Yes breakthrough bleeding is normal, it should die down.
I had a break through bleed when I first started HRT, and I was post menopause.
The Femoston ISNT the continuous one is it?
If it is, your on the wrong one, Femoston conti is for POST menopausal women, you'll need the sequential version, because you havnt gone 12 months without a period.
Xx