nondisjunction - meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells.
What Date? is a simple, freeware date calculator for Windows. Enter a date and interval and press calculate to find any date in the future or past. What Date will recognize any date format which Windows can understand (date formats as set in Control Panel). I wrote this because many people emailed asking; Is there a simple way to find a date given a start date and interval?.
for you and the results were: First Day of Last Menstrual Period: April 7, 2013 Probable Date of Ovulation: April 21, 2013 Possible Dates of Conception: April 17 to April 25, 2013 Due Date: January 12, 2014 (40 weeks) So from Mid-late April.