It is generally considered safe to deliver twins between 37 and 38 weeks of pregnancy. However, in certain cases, such as complications or medical conditions affecting the mother or babies, an earlier delivery may be necessary. It is important to consult with your healthcare provider who can assess your specific situation and provide personalized advice. They will consider factors such as the growth and development of the babies, any signs of distress, and the overall health of both you and the babies. Your healthcare provider will guide you on when it is safe to deliver your twins for the best possible outcome for everyone involved.