Normal cycles are 28-30 days counting from the first day of your last period, so if you have a normal cycle then your period should of started around August 30th-September 1st. I did your ovulation calculator below
First Day of Last Menstrual Period: August 3, 2012
Probable Date of Ovulation: August 17, 2012
Possible Dates of Conception: August 13 to August 21, 2012
Due Date: May 10, 2013 (40 weeks)
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