Keto while TTC?

What are your thoughts on starting the Keto diet while TTC?

I'm afraid my body might go into starvation mode as I figure out the right calorie deficit for me (I've used the calculators but still need to play with deficit %). I've read that your body won't let you conceive if it thinks it's starving.

I'm also afraid the diet itself might have a negative effect on TTC but I don't know much about that.

I'm having trouble with folicle growth and I didn't have that problem with my son. The only major change (besides having a baby) is that I've gained 30 pounds so I'm thinking this diet may help.

What do you all think?

UPDATE I forgot to mention that I have PCOS so just eating healthy won't cause weight loss. It has to be somewhat restrictive beyond a normal diet. Also I'd just like to do it until we conceive since we're having issues it could be awhile. Thanks everyone for your help :)