Engaging in sexual activity is generally considered safe during the second trimester of pregnancy, including at 26 weeks. However, it is important to consult with your healthcare provider as every pregnancy is unique and individual circumstances may vary. In most cases, as long as you have a healthy pregnancy without any complications such as placenta previa or preterm labor, having sex should not pose any significant risks. It is important to communicate openly with your partner about any discomfort or concerns you may have and to listen to your body's signals. If you experience any pain, bleeding, or unusual symptoms after intercourse, contact your healthcare provider immediately. They will be able to provide personalized advice based on your specific situation and medical history.