can she travel

[cmfugen]

hi friends

my wife is carrying of  4.5 months and she got the visa up to feb,2007 and i am the princi.applicant and if i land in canada before the birth of baby then my wife can come to canada after giving birth to baby and  before her visa expires or not, then we will sponsor for baby, this i nquired in other forum too but still it is not clear to me.

i need some expert advise, please
chandra