Chiropractor in third trimester

FTM 31 weeks exactly and I have my first chiropractor appointment today. I’ve never been pre or during pregnancy so I’m not sure what to expect. Baby is breech and I’ve been diagnosed with a narrow pubic arch so I want to get aligned to hopefully flip baby and get my pelvis in an optimal position to help avoid a c-section. I’m nervous that the techniques and popping/cracking will hurt.

To all mamas who’ve been to a chiropractor, what can I expect?