Can you receive short term or long term disability for pregnancy if you doctor puts you on light duty but your employer cannot accommodate this light duty or any other job at the company?
Most likely, yes. File a claim and have your doctor complete the Attending Physician's statement as well as your specific limitations and restrictions. Then have your employer provide you something in writing, stating that they cannot accommodate your limitations and restrictions. Provide this documentation to the insurance company along with whatever other paper work they require. Check your policy for key definitions:
Own occupation policies will pay a benefit if you are unable to perform the material and substantial duties of your job.
Any occupation will pay a benefit only if you cannot perform any work.
Total disability
Partial disability