My levels doubled which I was surprised about at the point. My levels were 2245 on Monday and I had an ultrasound today. The tech was confused and my doctor was just so harsh about not being happy with the ultrasound and told me I will have a miscarriage. They took blood work again. I wasn't expecting a viable pregnancy but was just so upset at the way the information was conveyed. Gestational date is off because I don't have a 28 day cycle anymore.