To prepare for pregnancy, you should aim to be as healthy as you can be. This means eating a healthy, balanced diet, doing regular exercise (it doesn’t need to be strenuous), and avoiding smoking, alcohol, and other drugs. It is recommended that you take 0.5mg of folic acid and 0.15mg of iodine for at least three months before becoming pregnant, and pay a visit to your GP. They will check your immunisation for rubella and chickenpox (and you will need to be immunised before falling pregnant). Any pre-existing medical conditions should be well controlled and stable before you fall pregnant.