A construct for use in an OB/GYN surgery is described. The construct contains an allograft having at least one layer of human amnion and chorion tissues, and has a size and shape appropriate for covering an incision or a surgical site resulting from the surgery. Methods of preparing the construct and using it in an OB/GYN surgery are also described. The products and methods improve the performance of the OB/GYN surgery, e.g., by reducing adhesions, scar formation while also reducing inflammation and risk of post-operative infection.