Femara or letrozole is a drug more commonly used in the US for fertility treatment, but it is slowly becoming more popular here. The thing with clomid is that over time it can reduce the endometrial lining, and has a significant negative impact on the amount of cervical mucus you get at ovulation. Letrozole doesn't do this to anywhere near as great an extent as clomid.

Because my clinic is such a big fan of natural FETs as part of IVF, I used letrozole to induce ovulation every single time I had one. On clomid I had severe anxiety and became completely unable to function as a person. The one time I tried it I ended up off work for a week on stress leave, and after all that it didn't even make me ovulate! The letrozole had way less side effects for me than the clomid, and it worked at making me ovulate every single time I used it.

If you've got any other questions, just ask. I did a total of about 6 cycles on letrozole.

BW