It depends on the lady's individual circumstances. Some family planning methods, like condoms, can help prevent pregnancy and sexually transmitted infections (STIs) for any sexually active person, whether they are married or not. Other methods, like the pill, are more effective for women who are sexually active and want to avoid getting pregnant. If a lady is not married and is not planning to have children anytime soon, she may want to consider using a method like the pill to help prevent pregnancy. However, she should always talk to her doctor about the best method for her.