After that, ask them why, if the Bible is the “inerrant” word of God, do some translations of that second verse use “miscarriage” while others say something more general like “caused a premature birth” instead? Because the meaning of that verse changes drastically depending on which way it’s translated.

According to Google Translate, the original Hebrew for just that phrase directly translates to "and her children went out," but with the full context of the verse it becomes "and her children are born." Make of that what you will.

I could translate it to "and she gets a black eye," but that doesn't make the word itself any less reliable, only my wrong translation. I don't know about the people you hang out with, but I'm pretty sure it's important for Christians to understand that human translations are prone to error.