It's not always easy adding a second yorkie because there is an adjustment period, which varies from yorkies to yorkies. My Carmel wasn't fond of Emma and it took at least a month for him to finally accept her. There are also many other YT members that struggle when first adding another yorkie. Additionally, I'm afraid that it might be too much change for your yorkie at one time (new yorkie and a baby). It will also take A LOT of work (puppy training) from you and your husband...and it might be too much because you will also have a newborn...I think I would hold off on getting another yorkie until things are more stable. That's just my honest opinion and I'm sure other YT members will give more great advices. Whichever decision you do end up making, I wish you best of luck!! Btw, congrats on your new baby!! How exciting!!