My doctor told me that since we are trying I should start taking pre-natal vitamines, that way the baby has a good start right from the beginning. I have also been reading that the more you can imporve your lifestyle the better off things will be for you and the baby. I am currently reading a great book that helps you prepare you and your husband for getting pregnant. it is called "6 steps to increased fertility" by Robert L. Barbieri, MD, Alice D. Domar, Ph.D, & Kevin R. Loughlin, MD.
I am learning some things that i never knew and reconferming some things i already knew. Every time i read something interesting in this book i tell my husband about (he gets annoyed, but i think it is good for him to hear it from an expert

).
God has a plan for you, keep praying and asking for what your heart desires and it will be given to you. I will be praying for you. God bless.