Chinese Birth Chart
Legend states that this chart was buried in a tomb near Beijing for nearly 700 years and the original is now in the Beijing Institute of Science. To determine the sex of a child, cross the month the child was conceived with the age of the mother at the time of conception.  This chart has been proven to be 93% accurate (many have claimed it is only accurate if you use the date of LMP vs actual conception date).

Month of Conception

Stats
A
g
e

a
t

C
o
n
c
e
p
t
i
o
n
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec F M
18 F M F M M M M M M M M M 17% 83%
19 M F M F F M M F M M F F 50% 50%
20 F M F M M M M M M F M M 25% 75%
21 M F F F F F F F F F F F 92% 8%
22 F M M F M F F M F F F F 67% 33%
23 M M M F M M F F F M M F 42% 58%
24 M F F M M F M F M M F M 42% 58%
25 F M F M F M F M F M M M 42% 58%
26 M M M M M F M F F M F F 42% 58%
27 F F M M F M F F M F M M 50% 50%
28 M M M F F M F M F F M F 50% 50%
29 F M F F M F M M F M F F 67% 33%
30 M M F M F M M M M M M M 17% 83%
31 M M M M F F M F M F F F 50% 50%
32 M F F M F M M F M M F M 42% 58%
33 F M M F F M F M F M M F 50% 50%
34 M M F F M F M M F M F F 50% 50%
35 M F M F M F M F M M F M 42% 58%
36 M F M M M F M M F F F F 50% 50%
37 F F M F F F M F F M M M 58% 42%
38 M M F F M F F M F F M F 58% 42%
39 F F M F F F M F M M F M 58% 42%
40 M M M F M F M F M F F M 42% 58%
41 F F M F M M F F M F M F 50% 50%
42 M F F M M M M M F M F M 33% 67%
43 F M F F M M M F F F M M 50% 50%
44 M F F F M F M M F M F M 50% 50%
45 F M F M F F M F M F M F 58% 42%
F 43
%		 43 % 50 % 57 % 43 % 54 % 36 % 54 % 54 % 43 % 54 % 50 % 24%
M 57
%		 57 % 50 % 43 % 57 % 46 % 64 % 46 % 46 % 57 % 46 % 50 % 28%