Chinese people like to use the Chinese baby gender chart which was found over 300 years ago in Qing Palace to calculate best conceiving time for preferred baby gender. Based on the chart, in 2016 and 2017 you will get a baby boy if your wife is conceived (the first day of last period happens) in the following periods:
Apr 7 - May 06 (32 lunar years old, 3rd lunar month) Dec 29 - Dec 31, 2016 (32 lunar years old, 12th lunar month) Jan 1 - Jan 27, 2017 (32 lunar years old, 12th lunar month) Feb 26 - Mar 27 (33 lunar years old, 2nd lunar month) Apr 26 - May 25 (33 lunar years old, 4th lunar month) Sep 20 - Oct 19 (33 lunar years old, 8th lunar month)
Chinese people like to use the Chinese baby gender chart which was found over 300 years ago in Qing Palace to calculate best conceiving time for preferred baby gender. Based on the chart, in 2016 and 2017 you will get a baby boy if your wife is conceived (the first day of last period happens) in the following periods:
Apr 7 - May 06 (32 lunar years old, 3rd lunar month)
Dec 29 - Dec 31, 2016 (32 lunar years old, 12th lunar month)
Jan 1 - Jan 27, 2017 (32 lunar years old, 12th lunar month)
Feb 26 - Mar 27 (33 lunar years old, 2nd lunar month)
Apr 26 - May 25 (33 lunar years old, 4th lunar month)
Sep 20 - Oct 19 (33 lunar years old, 8th lunar month)
Here are more ways to raise the chance:
https://www.yourchineseastrology.com/ways-to-get-baby-boy.htm