I went in to the Dr's because I was spotting at 17 & 18 dbpo. They checked a few things & said everything looked normal & that we'd just have to wait to see how things develop. Anyway, they also took my blood to test my hcg levels. They called me back & said that my hcg levels were high. They were at 585. When I asked them what that meant they said it was good, but they'd have to compare them to my hcg levels from 2 days later. I haven't gotten my results back from the 2nd test for comparison, but I was wondering what an average/normal hcg range was for 4 weeks 5 days? I ask partly because there are quite a few sets of twins in my family. Could high hcg levels indicate twins?