The Sims 2: Pets Q&A

I'm thinking about getting this for my wii. Now I have a few questions:
I know you can't have children, but can you MAKE children? (like in the begining when you make your peoples?)

Is the house big?

I know you can buy stuff for your pets, but can you ...

One of my families lost their dog, and I reported her missing. Then, in another family, the dog came by the house,and when I checked the microchip, but it said she had no owner, but i know it was the dog for that family cuz of the name nd breed. What happened?...

how can you ''whoo hoo''i would like to see it!!!!

GIMME CHEATS!!! .. please