A Long Wait Ahead

I heard back from the NP at my doctor's office. She reiterated that my numbers are rising as they should. I asked her if I should be concerned about the more than doubling HCG and she said absolutely not. She said they want it to at least double and mine is good. The bad news? He doesn't want to see me again for THREE WEEKS. I am going to lose my mind. I know that the ultrasound at what will be 7 weeks, 4 days is a normal time to do one as they won't be able to see much before then, but part of me was hoping there wouldn't be such a gap this time. That's a long wait when you're a worrier like me!