Sadly, I know more about this topic than I care to…
I’ve “broken” mine twice (both delivering my healthy 8 lb bouncing baby boys). Yes ladies… this really does happen. And not just to me.
I put broken in quotes because most broken tailbones are actually dislocations… not breaks in the traditional sense. But the medical profession calls them a “broken” tailbone. The tailbone is actually several mostly-fused vertabrae at the bottom of your spine. They shouldn’t move, but there is still cartiledge between the bones, and usually the “break” is where the cartiledge is. I say this just in case yours is a true break in the traditional sense (a crack in the bone).-- mine weren’t, so you might have different healing time.
If you have an actual fracture in the bone, my suspicion is that you would have better and faster healing from that - just give it time and it will heal. Dislocations are harder, because sometimes the joint doesn’t return to its normal position (I think a lot of people have chronic pain because of this).
For me, I had the dislocation kind. I couldn’t sit properly for about 3 months (forget getting on a horse… I couldn’t sit in a chair). Around 3.5 months, I did start getting back on a horse, and while it hurt some, I think it actually provided some therapy. One of the tough things with a dislocation, is that because you can’t sit straight, you “sit” in all sorts of bizarre positions to try to keep yourself out of pain. This really tends to put all the other muscles in your lower back, hips, etc. completely out of whack. So then you have resulting pain from the fact that your back and muscles are so tight and knotted. Keeping the surrounding muscles in good order is something that is worth doing… so I highly recommend a good physical therapist. It won’t help the tailbone per se, but it does help keep the surrounding muscles from becoming so tight that they continue to pull the broken tailbone out of alignment. When you get to the point that you can kind of sit, I think doing some gentle walking/posting trot in the saddle can really help. It always made me sore, but riding really stretches your seat muscles better than anything I’ve found, so I think it was helpful in getting my body back towards normal.