Beta Doubling times for Successful* Single Pregnancies

Beta range Median doubling time (hrs) Fastest doubling time (hrs) Slowest doubling time (hrs) Number of women reporting a doubling time for this day
1 - 2 14.55 14.55 14.55 1
2 - 4 20.32 12.00 42.74 13
4 - 8 24.53 12.00 124.58 58
8 - 16 27.87 11.02 124.58 190
16 - 32 33.57 11.02 365.73 605
32 - 64 35.72 11.02 731.84 1525
64 - 128 37.28 11.02 681.75 3154
128 - 256 38.26 11.02 837.21 5058
256 - 512 39.29 15.11 928.16 6036
512 - 1024 40.53 14.58 1873.27 6073
1024 - 2048 42.60 14.58 813.06 5268
2048 - 4096 45.78 14.58 723.05 4174
4096 - 8192 51.10 14.58 10704.95 3091
8192 - 16384 61.07 14.58 1381.26 2019
16384 - 32768 75.38 22.49 4695.28 1208
32768 - 65536 101.77 22.49 1220.17 631
65536 - 131072 137.16 28.93 1658.40 286
131072 - 262144 195.48 28.93 15745.01 68
262144 - 524288 211.42 28.93 517.70 7
524288 - 1048576 40.41 40.41 40.41 1

* Pregnancies are deemed successful if a heartbeat is detected.
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Show results for pregnancies between and years old