hcg levels

Sarah
Anyone get really nervous the day before they go back to get hcg check again? My last pregnancy ended in an early mc... and my levels never went above a 7! This time I was earlier when I found out than last time and they were already a 64... (3 weeks and a few days) I have sore boobs which didn't happen last time and my progesterone is a 56.7.. these are all good signs right? I just need that number to double! I need some reassurance! Help :)