There's no sin in childbirth, so why does the Torah say a woman brings a sin offering after birth? I think there's something else going on here.
Separately, read the Haftara this week! It's such a great story about a man who suffers from tzaraat (usually translated as leprosy but not the modern disease). It's too in depth to do justice to in 90 seconds but I'll separately post an article I've written about it.