Low PAPP-A levels

So... The results of my first trimester screen came back with an extremely low PAPP-A level( < 1 percentile), which the nurse explained to me suggests possible problems with my placenta and I am now on aspirin daily to prevent any clotting issues with the placenta. Of course I googled until I almost cried, since Google tells you this result suggests possible fetal death or restricted growth. I know this is a fairly new test in obstetrics and I'm trying not to worry... Anyone else get a low