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 24.71 12.00 124.58 51
8 - 16 27.74 12.00 124.58 167
16 - 32 33.54 14.45 365.73 539
32 - 64 35.77 14.53 731.84 1397
64 - 128 37.34 14.92 548.80 2897
128 - 256 38.38 14.96 505.12 4648
256 - 512 39.35 15.11 928.16 5535
512 - 1024 40.60 14.58 1873.27 5568
1024 - 2048 42.60 14.58 813.06 4855
2048 - 4096 45.85 14.58 723.05 3815
4096 - 8192 51.11 14.58 10704.95 2809
8192 - 16384 60.87 14.58 905.83 1814
16384 - 32768 74.77 22.49 4695.28 1074
32768 - 65536 101.21 22.49 1220.17 549
65536 - 131072 139.24 28.93 1658.40 246
131072 - 262144 194.75 28.93 15745.01 50
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