bringing home a new pit

Puppies usually are pretty good about getting along with just about anything. If your current dogs have a "spot" that is "theirs", make sure the new puppy doesn't invade it too much. Also, be very big, even over the top, about rewarding good behaviour. If the puppy does something wrong, be stern, but not aggressive or mean. But, definitely, lots of "good girl!" and things of the such when the puppy is being angelic. I would definitely have your husband hold one of your current dogs and you bring in the new one (or vice versa), so both your current dog and your new dog know that the other one is ok. If you are really worried, you could introduce them through a gate or chain link fence. I think you should be fine, just remember lots and lots of praise!

Since the pup your adopting is so young you shouldn't have much trouble. Just keep their food bowls separate.