It is important to consult with your healthcare provider before engaging in any sexual activity during pregnancy, especially after undergoing opiate substitution treatment. While every pregnancy is unique, it is generally recommended to avoid sexual intercourse for a certain period of time after this type of treatment. Your healthcare provider will be able to provide you with specific guidance based on your individual circumstances and medical history. They may also consider factors such as the stability of your cervix and any potential risks associated with sexual activity. It is crucial to prioritize the health and safety of both you and your baby during this time, so make sure to communicate openly with your healthcare provider about any concerns or questions you may have.