Our go-to OB/GYN has informed us that if you have regular uterus didelphys, you should be able to use the discs. However, we wouldn't recommend them if you have two vaginas as well.
It may also be a good idea to contact your own doctor to see if Flex Disc is a good option for you as they'll likely have a better idea about how they will work with your unique anatomy.
If you have any other questions, please don't hesitate to let us know by reaching out to us at firstname.lastname@example.org. We're always happy to help in any way we can!