Talk to Gynecologist on Family Planning

I am getting married soon and I dont want to get pregrant right away. Me and my fiance we want to take some time and plan the baby. So I want to consult the doctor for a preventive measure or thing that can help for a proper family planning as I am not infavour of medicines or pills as they have weird side effects what could be the most safe way of prevention. Please suggest something thankyou.