I found out I was pregnant around Christmas. I thought hey this was a great Christmas gift, but I have been spotting ever since. Today I passed a huge clot, had a ultrasound which showed a empty uterus, but my HCG levels are steady rising. On 1/4 they were 181.8, on 1/7 they were 487.8 on 1/12 they were 1499. Has anyone else experienced this?