Hi, if you are in India, age 24 yr is considered as quiet mature one. Do not worry much, time teaches every thing as you become pregnant. Then also giving some basic tips. First and formost healthy eating habits which include following To eat green vegs, fruits, milk and sprouts daily. To avoid junk food as well previous days food which may lead to illnesses. Be active and ceative.Visit your gynec regularly and take medicines advised properly in time.