MayB your own hormones are joining in which may make replacement less calculated.  If the 1 pump is sufficient stick with it.  MayB keeping a mood/food/symptom diary will help chart progress.  
Many have problems with progesterone hopefully some1 will be along with advice otherwise put the product name into the search box: make notes ;-)
Itchy skin may be due to low oestrogen levels which can make the body dry inside and out: skin, scalp, deep in the ears, vagina, between the toes ...... ain't this fun  

. Which symptom would you like to ease first?
Some antidepressants can ease flushing.