看到一个文献数据支持的理论:The Relationship Between Placental Location and Fetal Gender (Ramzi’s Method)文章里主要意思说从1997到2007年共对5376名孕妇做了调查研究,得出数据怀孕前三个月,97.2%的男性胎儿孕囊位于子宫胎盘位置的右侧。97.5%的女性胎儿孕囊位于子宫胎盘位置的左侧。男的胎盘着床于子宫右侧,女的胎盘着床于子宫左侧。6周就可以辨别出来了 The Relationship Between Placental Location and Fetal Gender (Ramzi’s Method)| OBGYN.Net http://www.obgyn.net/articles/relationship-between-placental-location-and-fetal-gender-ramzi%E2%80%99s-method 再说说楼主,按理论阴超是,b超3次均女孩,生出来女孩,估计我就是2.5%的那批人。还是生下最准。纯娱乐~ 配图是腹部b超,阴超反过来理解即可 |