Cbd oil and pregnant...

Has anyone tried cbd oil since being pregnant? Before I was pregnant I was prescribed medical marijuana for my pain that I have from an accident that left me handicapped in my foot. Since becoming pregnant I stopped smoking marijuana. My pain is bad and my husband bought me cbd oil that has no thc in it. I really want to try it for my pain but I'm scared. I did ask my doctor about it 3 months ago, she said she would look into it and get back to me but I have a feeling she forgot. Since then I've seen other Obgyn in the practice so I haven't had a chance to follow up with her. Any advice would be greatly appreciated!!!