I am about 8 weeks now (not sure though because of my irregular period). I've done about 3 U/S exams so far. First was very early, at about 4,5-5 weeks, the doctor did not see anything. Last week I've done 2 more exams, and the doctor saw only an empty sac. Also, on Thusday my HCG blood levels were about 27300 , and on Saturday about 32500... I went to my doctor today, and he can not tell me if its blighted ovum or ectopic pregnancy, and told me to wait couple days, and repeat the ultrasound on Thursday, 3/9. I am having mild cramps and light brown spotting since I found out I am pregnant, 3 weeks ago. What do you think guys? I am so scarred about the ectopic pregnancy.