line progression

Emily
After 2 losses in the last year, please know that I know these are positive... I just want to make sure that he progression is still happening.. I have my second hcg blood test tomorrow, and they need to be at least 1,600 if they are doubling properly.. my level was 407 last Thursday (5/4)  afternoon at 15 DPO. Does this look promising?? Please pray for my sanity..