Blood work-Low numbers

Dominique • Wife. Mom. 49er fan. WWE fan. Love cooking and entertaining.
So I had a full blood work panel done and several of my numbers were low. Does anyone know if all of these are connected to one main problem or is there several different problems going on? I'm going back to my doctor in a couple weeks to discuss the results but thought I would see if you ladies know anything. Side note, we've been trying to get pregnant with #2 for a year now, I'm assuming with levels that low I'm not ovulating. I don't know if that is permanent or if it's fixable.
Blood work levels:
Estradiol: 20
Progesterone: 0.4
Vitamin D: 19
Insulin: <2