What happens if clomid don't work what fertility pill is next?

is there anyone out there who has tried clomid and it didnt work? did you try another fertility pill that did work that your dr gave you? and what was the name and how long did it take you to get pregnant?What happens if clomid don't work what fertility pill is next?
I took Clomid for two cycles and it didn't work, my doc put me on Femara(I think thats the name) and I got pregnant the first cycle
You could try natural progesterone, or check your ferritin levels.