Anyone taking Femara?

I have been ttc for a few years. I had a blighted ovum in Summer 2013 and haven't been able to conceive since then. This month, my husband and I went in for all the jeccasry testing. His analysis came back normal but my hormones are a bit on the low side so my Dr. prescribed Femara. I have been reaearchig Femara and side effects. I am just a little scared because from what I understand it is not FDA approved for infertility. I would just like to hear your experiences with this medication. Thx!