I'm afraid this is going to show my lack of knowledge about biology, but I want to ask just the same -- are there things I can do to improve my egg health? I'm 39 and during my late 20s/early 30s I smoked and drank A LOT. I'm worried that maybe I did permanent damage to my egg reserve. I have a healthy and beautiful 4 mo daughter and would very much like to give her a sibling sometime in the future. Any thoughts?
Improving egg health
The best thing you can do to improve your fertility is to improve your overall health: fitness, weight, vitamin and nutrient reserves, immunity, etc.
I have poor quality eggs too (I am 37), and have been TTC for 3 years. We have done IVF and it failed because of poor egg quality. I do believe that there are some supplements that can help, although I don't have a complete list with me (you may want to do a little research on dr. google).
Royal Jelly is supposed to help: http://natural-fertility-info.com/increase-egg-health