Need some input

I just got back a quantitative hcg level and at 4 weeks 6 days it was 107.9 and 5 weeks and 2 days it is 174.5. My doctor said the first one looked good and then after the second said that they are going up and that is good but he would like them to have double and is having progesterone levels done today too and I have to go back in a week for more hcg levels. I’m sure it’s okay but it’s not quite the overall great or even normal I was hoping for and I am really trying not to cry or stress out. What were others levels at this point and has anyone else not doubled?