I echo Sadie's Mom...I didn't have Muffin spayed & now she has two 11 inch scars on her chest & belly. Current research shows that mammary cancer is 100% preventable if a baby is spayed.
http://www.purinaone.com/dogcare_con...leNumber=30066
If you are worried about the spay surgery, trust me, you don't want her to go through the mastectomy surgery. I look at Muffin & realize I made the wrong decision for selfish reasons...I didn't want to "hurt" her.
If you want to breed your puppy, then by no means have her spayed. But if you aren't going to, please listen to my story of caution.
CJ