When choosing between the Kyleena, Mirena, and Jaydess intrauterine devices (IUDs), it is important to consider your personal preferences, medical history, and future plans for pregnancy. Both the Kyleena and Mirena have similar effectiveness rates and are based on the hormone levonorgestrel. They have been associated with minimal weight gain compared to other hormonal contraceptive methods. Consulting with your healthcare provider can help you make an informed decision based on your individual needs and circumstances.