[BillC]

Hi Lou, welcome to the forum. We need to know what kind of orchid you have but as a general guide your 'baby' is called a keiki and will continue to grow until it produces leaves and roots. When the roots are large enough, (two to three inches long) you can remove the keiki from the spike and pot it up. There is a very good article on how to do it at www.easyorchids.co.uk
which has pics to show the whole proceedure. This article is for a phalaenopsis orchid which may well be what you have.

Bill