Making a family takes time, effort and consideration from everybody involved.  Make sure if you are thinking of increasing your numbers and there are children already in the family that can communicate and make reason of the coming changes then talk to them, and let them know what you are hoping to achieve.  Knowledge is power as they say and letting your family know of the changes or things you would like to do with them is a good way to iron out any possible things that could cause an ‘on the spot fit!’