Well symptoms are not the best indicators of gender. I was extremely sick with my first daughter from about 5-6week till well past the second trimester. Car rides were a huge task to get through with out vomiting! I did think it was a girl thing because my first was a boy and I wasn't very sick at all with him! Well my third was also a girl and I wasn't sick with her at all. I had a few times where I felt sick but never ever threw up at all.