Beta Scores for Successful* Single Pregnancies From Women Aged 30 To 40

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	38	14	617	16
11	30	4	361	84
12	52	3	494	244
13	85	7	961	595
14	129	7	1666	1218
15	199	4	2744	2770
16	302	6	3607	3714
17	442	8	10529	4006
18	650	12	12318	4165
19	947	18	14411	4086
20	1354	13	16860	3873
21	1905	11	19726	3540
22	2588	9	41000	3065
23	3478	46	42975	2685
24	4634	70	45047	2278
25	5982	107	55521	1879
26	7501	148	69865	1580
27	9193	205	87915	1328
28	11765	275	89387	1153
29	14585	314	131472	984
30	17563	359	233663	845

* Pregnancies are deemed successful if a heartbeat is detected.