Input on HCG levels?

Hi all!

According to a couple different apps, I am 4 weeks 6 days today. This is my 2nd pregnancy after a chemical in January.

On June 29th I had a bit of pink spotting, so I went to urgent care. They didn’t see anything on the ultrasound since it was super super early. But they took my HCG and it was 40. Since then I haven’t had any spotting, just mild-moderate cramping. My other symptoms are pretty minimal so far too.

I’ve had two more HCG tests done and these are the results I got back today. Even though it is in the frame of average doubling time, it looks to me like it’s slowed down a bit since the beginning. Is that a bad sign?

6/29 - 40

7/2 - 159

7/8 - 1027

Thanks!!