are you working? can your company sponsor you?
anyway, for my case i was once under husband sponsorship then i transferred under my company's sponsorship only last year. i gave birth early this year, when we applied for visa they ony gave my baby 1 year visit visa- their reason is that i should be under family visa for them to give residency/ family visa for my baby. I dont know if by next year we can change his visa to rp. It really depends on them, think my luck did not work that time because I have a friend who's also under company's sponsorship who gave birth a month earlier than me, her baby was given a 5 year rp.