Home » Calculators » Child gender by updating the bloodChild gender by updating the blood Date of birth of the fatherDate of birth of the motherConception date Please, Enter all values correctly.The sex of the childLast update of father’s bloodLast update of mater's blood PrevPreviousUltrasound gestation period NextChild gender by parent blood typeNext How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.