Normal functioning of body systems, including reproductive processes are dependent on good nutrition and positive lifestyle modifications. These make preparation for pregnancy easier.
Lifestyle modifications help in among other things, decrease the amount of stress hormones in the system which can decrease the likelihood of pregnancy occurring.
Counselling services, where available are invaluable in handling stress, anxiety and mild forms of depressive illness which have been known to reduce the chances of pregnancy.
A moderate exercise regime is known to have a positive effect on couples desirous of achieving pregnancy, particularly obese women.
Intake of multivitamins and micronutrients has the potential of helping women who have anovulatory issues and men who have poor sperm parameters. These can therefore be said to increase the likelihood of pregnancy.