How loud is too loud for baby

Takoda

My fiancé preforms concerts every few weeks in bars, I love to go and support him but now that I’m almost 19 weeks pregnant I’m afraid it could damage the baby’s hearing. I know it’s mostly just paranoia over this being our first child, but it would be at least 4-5 hours in a loud bar with no real way to get away from the music other than to take my chances outside with smoke around. I’d love to go with him but I don’t know what’s best for my pregnancy