Hcg 4000 but nothing on ultrasound

Melissa

I had a scan done on Monday thinking I Was about 5 weeks 3 days (from date of lmp) and nothing was seen on the scan. Bloodwork was taken and hcg is 4000. Dr isnt sure if Im earlier than I thought or if this is another potential miscarriage (have suffered 3 already). Had this happened to anyone else and the pregnancy turned out ti be viable? I havent had any bleeding or anything like that, but Im just so nervous!