If you want to see some baby fish grow make sure there are plenty of hiding spots for them when she gives birth. After the fry are born you can catch them with a net or turkey baster and put them in a breeder net to grow for two weeks or so then let them out. Breeder nets get pretty dirty fairly fast and it is best to leave the preg female alone as to not have her stess and abort her pregnany.
Also be sure to have a large enough tank for all the fish you will end up with!