Curious question

I am wanting to find out if there is a connection between siblings, baby Gender and Morning sickness. So like myself I have 2 older brothers and I am expecting a boy (first child) so far I have had very little Nausea or even any problems during this pregnancy. I am 22 weeks now so hopefully I am now at the smooth sailing stage. My curiosity is are my Genes adapted to cope better with male hormones during pregnancy because my family is prone to having boys? Let me know what siblings you have (if any) what you are expecting (of you know) and how you have managed during your pregnancy. Let's see if we can find a link!