what are the titles she has?
"Queen of Jamaica and her other realms and territories", "Queen of Australia and her other realms and territories", "Duke of Normandy and Lord of Mann", Defender of the Faith and Duke of Lancaster
Elizabeth II
In each of her realms she has a distinct title that follows a similar formula: "Queen of Jamaica and her other realms and territories" in Jamaica, "Queen of Australia and her other realms and territories" in Australia, etc. In the Channel Islands and Isle of Man, which are Crown dependencies rather than separate realms, she is known as Duke of Normandy and Lord of Mann, respectively. Additional styles include Defender of the Faith and Duke of Lancaster. 
when did the queen have her first child 14 November 1948
wiki:2119351
Elizabeth II [SEP] Titles and styles
Elizabeth has held many titles and honorary military positions throughout the Commonwealth, is Sovereign of many orders in her own countries, and has received honours and awards from around the world. In each of her realms she has a distinct title that follows a similar formula: "Queen of Jamaica and her other realms and territories" in Jamaica, "Queen of Australia and her other realms and territories" in Australia, etc. In the Channel Islands and Isle of Man, which are Crown dependencies rather than separate realms, she is known as Duke of Normandy and Lord of Mann, respectively. Additional styles include Defender of the Faith and Duke of Lancaster.