Coco - I only have Triumph bras that go to a 10G at the moment. They have a range called Beautiful By Triumph. You can look it up on the triumph website and let me know if you like any styles.
Good news about your pain free a/f. Its great that you are having such obvious improvements since the op. I always feel bloated from just after o til a/f arrives but have very bearable period pain. Was a lot worse when i was a teenager.