Normal HCG for 2 weeks pregnant

Nikki

I went for blood work on January 7th and my HCG was 204..

I had blood work again on January 11th and my HCG was 374..

I had an ultrasound today and they couldn't see anything bc they think it's too early to see anything..

Help... I'm nervous and scared.. Is this all normal for 2 weeks pregnant..