Beta Scores for Successful* Single Pregnancies From Women Aged 18 To 50

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	29	3	617	26
11	32	4	361	117
12	52	3	494	358
13	88	7	961	829
14	132	5	1666	1650
15	200	4	2744	3694
16	299	6	3607	4921
17	433	9	10529	5278
18	635	14	12802	5491
19	930	18	17072	5404
20	1329	13	22766	5152
21	1877	11	30360	4696
22	2577	9	41000	4070
23	3481	46	53991	3558
24	4622	53	72000	3024
25	5937	45	55521	2516
26	7468	39	69865	2128
27	9193	37	87915	1792
28	11738	36	89387	1567
29	14633	20	131472	1338
30	17571	12	233663	1149

* Pregnancies are deemed successful if a heartbeat is detected.