Cheek was a gyno and delivered many babies using hypnotic technique
He used hypnosis to stop bleeding, relax the patient, and much more.
Recommend the read as you will be able to employ self guided hypnotic technique for yourself during the birth.
https://www.amazon.com/Mind-Body-Therapy-Methods-Ideodynamic-Hypnosis/dp/039331247X?nodl=1&dplnkId=463f2af6-53a3-4d2f-9334-9fccd1d45e38