I ride with a gal who injured her tailbone badly in a mountain biking fall. She didn't cycle for several years after that! I suggested one of the saddles that is split in the back, which she purchased and is now riding pain-free (after her tailbone healed completely; she must have broken it!) since her tailbone never comes in contact with her saddle.

Another tip - if your body will tolerate it, lower your handlebars slightly. Sitting in a more upright position puts you right on your tailbone. I tend to lean forward quite a bit on my road bike and my tailbone isn't even close to being on the saddle.

Good luck!

Emily