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
2 - 4 21.62 12.00 42.74 11
4 - 8 24.89 12.00 124.58 52
8 - 16 28.22 12.00 124.58 175
16 - 32 33.62 14.45 365.73 564
32 - 64 35.79 14.53 731.84 1451
64 - 128 37.39 14.92 681.75 3007
128 - 256 38.37 14.96 505.12 4820
256 - 512 39.35 15.11 928.16 5752
512 - 1024 40.55 14.58 1873.27 5762
1024 - 2048 42.59 14.58 813.06 5016
2048 - 4096 45.87 14.58 723.05 3960
4096 - 8192 51.18 14.58 10704.95 2933
8192 - 16384 60.94 14.58 905.83 1908
16384 - 32768 74.94 22.49 4695.28 1130
32768 - 65536 102.58 22.49 1220.17 587
65536 - 131072 137.16 28.93 1658.40 262
131072 - 262144 195.48 28.93 15745.01 54
262144 - 524288 232.92 28.93 263.56 4

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