residence visa validity

by MRS RAJESH
(ABUDHABI,UAE.)

sir,
I'm having valid UAE residence visa till 2013,I'm 7 weeks pregnant,me and my 3 yrs old daughter wants to stay in India till 2012 June ,will our visa be cancelled?is there any procedure to extend the validity of our visa,can we stay out of UAE for more than 10 months?please help me by sending a reply.