Fifths disease/Slapped Cheek Syndome exposure in first trimester

I've been around my niece that was just diagnosed with Fifths Disease. I read that most are immune to it since it's a common childhood illness but I'm not sure if I've had it. I read that there is a 10% chance of miscarriage if the mother gets infected. Has anyone on here been exposed to this before during pregnancy? What was the outcome? And how did the doctor treat/diagnose it?