Yes, you do risk delaying the healing, big time.

Same happened to me last May.

I did 2 changes at the same time. After riding on a new 135 mm wide Sp Toupe (fit done by my LBS) for a week, I moved my cleats about 1/4" back, and moved the saddle slightly up and fore. This, after 8 years with the cleats in the old position.
The outcome was the "blobby" thing between right seat bone and skin, which moved side to side under careful probing, and excruciating pain at every attempt to ride. And mildly painful to sit down too although only in certain positions and on certain surfaces.
Rested for 2 weeks, and gave up. Went for my usual 32-mile ride. Pain returned immediately after the ride, and the "blobby" thing was up to pea-size the next morning. This taught me a lesson and scared me as I thought I am developing a tumor.
After some research I established that the "blobby" thing is a piece of bone, wrapped up in some ligament, and it is just a case of ischial tuberosity. Look it up. By the way, a very good X-ray technician should catch it, while an average one might miss it. Same goes for the doctors.
Rested for another 5 weeks, replaced the Toupe with the wider 143 mm version, rode the rollers for 3 30-minute sessions to fine tune the saddle, and returned to everyday riding the next day.

No issues since.

Cheers!