Slapped cheek syndrome

Had anybody been exposed to it? Nephew, SIL and probably MIL has it, I had contact with all of them in the past two symptomless weeks, when they already carried it and could've infected me. Will call my obgyn tomorrow to ask about risks and anything to do. What I've read on the web so far does not sound too well, but I'm waiting for his professional opinion. Not easy to stay calm anyways.