First let me say "Welcome" and congratulations on your new little one! I totally understand your feelings as i had the same ones. I worried about every thing with Oliver as a pup. There is a lot to learn about little dogs and their care. But in time, it will get better. I did the xpen thing and it was wonderful. We are doing it with Brooklyn now. They do fine in there. Try to relax and take lots of pictures because the puppy months go by so quickly. Brook is now 4 mos. and i have to admit that i am much more relaxed with her. (still worry a little....but much better!)