“…Thirteen studies were conducted during the first trimester of pregnancy [ 17 , 20 , 22 , 23 , 26 , 30 , 38 – 40 , 44 – 47 ], eleven were from the second trimester [ 14 , 16 , 24 , 35 , 38 – 41 , 45 , 46 , 48 ], eighteen were from the 3rd trimester [ 14 , 18 , 19 , 27 , 29 , 31 , 33 , 34 , 37 – 42 , 46 , 48 – 50 ] and six studies focused on the entire pregnancy [ 25 , 28 , 32 , 36 , 43 , 51 ]. In measuring the quality of life, nineteen studies used SF-36 [ 14 , 17 – 19 , 21 , 22 , 25 – 27 , 30 , 33 , 34 , 38 – 41 , 44 , 46 , 51 ], twelve studies used SF-12 [ 16 , 20 , 23 , 24 , 28 , 29 , 35 , 42 , 43 , 46 , 48 , 50 ], two studies used the WHOQOL Brief [ 32 ...…”