After attending medical school and specializing in reproduction, I learned that its all up tp the male, his I believe it the y trait of the male dna that dertermines the sex of baby. Thats why so many women
were beheaded in midevil times they thought it was the women but its actually the man. Its pretty interesting if you think about it. But I have 2 boys and abt to have boy #3 and ive done almost every position, deep penatration, time of year, ovulation, blah blah and still have 3 boys.