Hcg doubling time reduced after 7 weeks

shreya • 🌈 👶🏻 December 2018💕

At 6w6d my hcg was 24,906

And today at 7w6d it is 39,126

The doubling time has drastically reduced but the hcg is rising. I saw a heartbeat at 7w2d but my doctor didn’t measure it. I’m worried. Why is the doubling time reduced so much ?? It’s more than 200hours..!! Anyone having similar experiences??