孕周

n

S

2.5 MoM

SI

16~

432

15,424.1

4985.3

38,694.3

28,766.9

17~

2155

14,078.2

5458.7

35,907.3

25,608.2

18~

3569

12,860.6

5094.7

32,480.5

23,178.3

19~

3962

11,536.1

4645.3

29,473.8

21,109.0

20~

2924

10,314.5

4506.1

26,303.5

19,685.5

21~

1638

9297.1

4443.6

23,303.8

18,382.3

22~

827

8368.7

4470.9

21,204.3

17,662.5

23~

425

7356.3

3983.4

18,712.3

15,665.6