I don't know if any of these towns are close to you, but I found this list at hypnobirthing.com. If none are close to you, maybe one can connect you to a practitioner in your area
Molly Bagwell
Eldrige, IA
563-285-5071
molkay1977@yahoo.com
Katheryn Hamilton
Union, IA
641-486-2550
K8Hamilton@yahoo.com
Lori Hanson
Cedar Falls, IA
319-277-5691
ljhanson@cfu.net
Sonna Johnson
Goldfield, IA
515-825-3407
sonnajim@goldfieldaccess.net
Heather Ziedler
Davenport, IA
563-332-1570