Ohh, I think you will have fun. I have two kids 14 months apart and now I am pregnant with twins. My first two have a wonderful relationship. They love each other and play great together. Plus my daughter was too young to be jellous of her new brother. I was actuallty thrilled to find out I was having twins because I was afraid that the new baby would be a bit left out b/c the other two are so close. So I am happy that the twins will have each other. It is so fun watching two babies grow and interact with each other. Best of luck on your new adventure! You kids will all be pretty young but I think it will be a lot of fun. Busy but fun