Overweight and TTC

Janna
So, I haven't had a period in 4 months, but I'm not pregnant. My doctor said it's because of my weight. She said I won't be able to conceive until I lose at least 50 pounds... the problem is that I can't seem to lose any weight no matter how little I eat! I'm just feeling so discouraged... I'm 5'4" and 220 pounds.