Letrazole failed cycle!

Chelsey • 2 years of Trying for our 1st Baby, now working with fertility DR. In the midst of the storm,God will be your Sunshine!
So got my levels back today and was a whole 
0.4! Yes not even a 1!! I have been told it should be at least 15 to ovulate. Has this happened to anyone else and letrozole make a come back and help you ovulate in cycle 2 or 3. I just feel it isn't going to work for me because with clomid I had way better readings from get go and my body rejected it. I need advice desperately. This is so depressing!