One of the biggest things I've heard that they recommend pre-conception is to get into the habit of eating healthy. Do a detox if your body needs one. If you drink alcohol it is good to break the habit before becoming pregnant as it can take awhile to clean it out of your system. The same goes for any other addictive substances you may be/have taken. Make sure there is folic acid in your diet while you are trying to get pregnant as this is most important in the time period before you know you are pregnant. I don't know much about what to do EL-wise except that the more you know and prepare now, the less you'll have to do later. You could start collecting materials as it can be quite an investment. Good luck.