Reproduction By michaelk Mar 19, 2012 Conception Father's chromosomes determine sex of baby Period: Mar 19, 2012 to May 19, 2012 Embryo forms and develops Period: Apr 16, 2012 to May 4, 2012 Ultrasound confirms pregnancy Period: May 19, 2012 to Dec 19, 2012 Fetus grows and develops into a healthy baby
