Advice needed

Girls,my DH has a really big problem with pressure and can't preform when I tell him we have to BD. Next cycle I will be on femara for a first time (we are trying with femara for 2 cycles before scheduled ivf). I'm really nervous that he will not be able to do his part because of the pressure and that would mean that I'm using medication for nothing..any advice would be good! Btw does doctor give you only one "date" when you should have sex or do we have a 2-3 days to try?!