More Women Opting to Have Their First Child Later in Life http://www.healthnews.com/family-health/pregnancy-childbirth-parenting/more-women-opting-have-their-first-child-later-life-3566.html22 surprising facts about birth in the United States:http://www.babycenter.com/0_22-surprising-facts-about-birth-in-the-united-states_1372273.bc?page=2#articlesection2Age of Mother at Childbirth, Canada: http://www4.hrsdc.gc.ca/.3ndic.1t.4r@-eng.jsp?iid=75Age of women at first childbirth by country: http://www.nationmaster.com/graph/hea_age_of_wom_at_fir_chi-health-age-women-first-childbirth