Crazy diet-- does it work

Stephanie • So I am in my mid 30s and have been trying to conceive for 2 -3 years. Healthy as far as fertility but overweight.
Hey all: 
So I have been trying to get pregnant for at least 2 years-- maybe longer. I am 34 and overweight.  I have tried drugs but they made me crazy plus I gained weight on them, and now my new gynecologist says has put me on a crazy diet. She swears by it and it is low sugar low carbs high protein. Literally I can only eat a few things and I have lost 34 lbs total so far which is good but I wasn't doing the diet for weight loss; it's a nice perk, but not what I was going after.  Has anyone had success with dieting to get pregnant?  Has anyone done something specific that has worked for them?  I am looking for so inspiration so I can get re-motivated to get back on the right track.