Has anybody experienced high hcg levels along with low progesterone levels?

I had a blood test done on Friday because I have been spotting and having minor cramps. I called for the results first thing monday morning and they said that my hcg levels are high (around 77000) so they said everything is fine and not to worry. Then this morning they called me and told me my progesterone levels were low and I am going in for an ultrasound in the morning. I am really scared. I am about 8 weeks pregnant and I want to know if anyone else has had this experience and what the outcome was? My husband keeps saying that everything is fine and we are going to have a healthy baby but if I go in tomorrow and something is wrong I don't want to break down crying in the dr's office. Any help please.