Anyone start a diet after infertility w/ pcos and conceive?

I’m overweight and I have done several failed rounds of medicated cycles. So I’ve decided I’m going to cut out all the sugar, sodas and carbs and eat really clean and try to get this extra weight off before I go back to try some more cycles with letrezole. Anyone end up dieting and conceiving NATURALLY with just diet after failed cycles??? Please someone give me some hope so it will make this diet much easier!!❤️🥲