I’m around 6 weeks pregnant and due to spotting and stomach pains I was referred to the Early Pregnancy Unit for tests. On my first blood test my HCG levels were 1,900 and we seen 2 sacs on a scan. My HCG has now dropped to 1,200 so it’s not low enough to say it’s a miscarriage of both twins for certain. Could this be Vanishing Twin Syndrome? Waiting for a scan on Tuesday.