TTC whilst breastfeeding -no period

Ok, so I’m TTC whilst breastfeeding, no periods yet. I read about the ‘Relative Metabolic Load Hypothesis’.

https://www.thealphaparent.com/how-to-get-pregnant-whilst-breastfeeding/

Basically if your consuming a lot of calories and in and energy positive state, your periods should return, the link above explains why.

Out of the women who’s periods have returned would you say your eating a high calorie diet, and the ladies who’s periods haven’t returned would you say your not eating a high calorie diet.