I plan to ask my doctor about this but wanted some advice as well. My hubby got us tickets to see The Who in March (their final tour ever!) and I will be 30 weeks pregnant. I've done some research and saw that it could potentially damage baby's hearing as their ears are fully developed by this point. The who (at least back in their day) are notoriously loud and the concert will probably last several hours. Our seats aren't great and aren't near the front/speakers. I can't imagine passing up my only chance to see one of my favorite bands but of course don't want to hurt my child's hearing.