New IG refugee here to TTC my DD after 2 DS

Hi everyone! I've been a lurker on IG for a while, have 2 DS (DS2 is a Shettles opposite) and have one last chance for a baby girl. I'd started out on IG (and am technically currently on the IG diet, but with only about 1200 calories per day) and I'm wondering if LE might be a more successful approach for me. I have a 5 year old, a 2 year old and have been with my DH for 6 years now. He really only wanted 2 kids, but my whining (and downright depression over finding out #2 was a boy) have convinced him to let me go for one more.