At four weeks i lost all my symptoms, sore breast, fatigue. I had a blood test at 4 weeks 4 days with hcg level 350. My doc said thats low and i'm miscarring. No bleeding and still bright positive test two weeks later. Also i feel nausea and tired, tender breast but not swollen. I'm confused why she didnt have a second test ordered, how does she know. Could i be pregnant?