Beta Scores for Successful* Twins Pregnancies

Days Past Ovulation
(What is this?)
Median HCG Level Lowest HCG Level Reported Highest HCG Level Reported Number of women reporting a number for this day
10 23 5 85 13
11 60 13 1443 56
12 84 3 2583 183
13 146 5 4622 351
14 234 8 8270 632
15 371 11 14798 1395
16 558 18 3138 1751
17 815 12 5367 1778
18 1182 30 9289 1832
19 1667 40 12979 1735
20 2418 52 13975 1530
21 3495 70 20956 1309
22 4920 152 27554 1034
23 6790 107 36231 868
24 9025 138 47639 675
25 11631 177 62640 555
26 14775 227 82364 456
27 18350 291 108300 375
28 23929 374 203398 333
29 30332 480 394836 280
30 32756 995 189191 230

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