According to the ancient Chinese gender chart, If your find your period first date occurs during one of the following time ranges in 2017 and 2018, there will be more chances to get a baby boy if you try after the period on your ovulation time:
November 1 - November 30, 2017 December 1 - December 31, 2017 January 1 - March 16, 2018 April 16 - May 14, 2018 July 13 - August 10, 2018 September 10 - October 8, 2018
According to the ancient Chinese gender chart, If your find your period first date occurs during one of the following time ranges in 2017 and 2018, there will be more chances to get a baby boy if you try after the period on your ovulation time:
November 1 - November 30, 2017
December 1 - December 31, 2017
January 1 - March 16, 2018
April 16 - May 14, 2018
July 13 - August 10, 2018
September 10 - October 8, 2018