OMG..so great, but I know you will do your best by these pups. Mom dogs cant take care of so many. You should think about bottle feeding them once or twice a day. Giving Mom some suppliments. You will end up with 3 or so runts that cant get on the nipple, they will need extra help. I know you ar a great doggie daddy just 13 pups are so hard to thrive and on Mom....Its cute but a serious situation. P,M, me we can set you up with nursing bottles for pups and suppliments. We are off to the Zoo tomorrow with a group of children so they can see the animals of thier countryland, but will get back to you.