Is it poossible to only carry one gender?

By that i have had alot of comments like 'maybe you only will have girls', or 'maybe your body cant carry boys for a certain reason'.

But i have a friend who reckons theirs a link in my family (as well as his own) that our families have the link (in his) is boy boy girl and mine seems to be girl girl boy.

DH family are a bit all over the place. Ive also been told the mothers genes in the generations are most likely to determine the babies genders.

Thoughts??

I really am hoping this bub is a boy, but not getting my hopes up just because of the girl girl boy theme.