I recommend speaking with the manufacturer of the different types of devices that you are using. However, it is also important to speak with your doctor
to discuss this situation and what's best for you. While there are some advantages to barrier contraception
, such as a condom, in that they are more effective at preventing the spread of sexually transmitted diseases, they are prone to rupture and are among the less effective forms of birth control that are prone to failure. As you mention in your question, there is always the concern of a tear or some other complication that may end up with an unwanted pregnancy or a sexually transmitted disease. Because there are so many varieties, each of which has their own specifications, speaking with the person who actually makes the product is most likely to be effective. In general, using multiple forms of contraception can be more effective at preventing STDs, but please speak with your doctor about this specific situation and whether or not it is the best for you. Also, please reach out to the manufacturer to check if this is appropriate. Please speak to your doctor.