I think we found a commom ground now.      Like I said, not used in the present-day terminology, other than by some medical people and in certain contexts.  

     I think we got the point across considering the question "But can this verb be used like meaning: 'gerar um bebê'?''     Gerar in Student´s mind certainly would be in the Portuguese sense of "gerar, procriar, reproduzir". 

    So, yes and no, it is an outdated expression, but it can be found once in a blue moon in books devoted to the field of medicine, like the ones found in this search into the Google books with the combination "generate a baby":

    http://www.google.com/search?q=baby+making&tbm=bks&tbo=1&hl=pt-BR#sclient=psy-ab&hl=pt-BR&tbo=1&tbm=bks&source=hp&q=generate+a+baby&pbx=1&oq=generate+a+babymaking&aq=f&aqi=&aql=1&gs_sm=d&gs_upl=22500l25172l0l26407l15l11l0l0l0l6l687l3467l3-2.2.3l7l0&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=5805f97c73621384&biw=1024&bih=515

    It is precisely what I meant to Student, it is possible that sometimes he reads something like this somewhere. I answered him based in the "possibility" of CAN in his question. 

    I wouldn´t expect Dr. House would be say romantically to his girlfriend  "I love you, let´s procreate.", altough it is way more common.