well for starters you need a male dog lol lol ,only kidding mate ,all dogs are different when excepting the dog ,on about 8th day or earlier interuce the dogs 2 each other ,just so they get use2 each and then try get 2 do the buisness from 1oth day on wards,some dogs straight away some take on the 12th ,14th ,mine took on the 18th ,i always repeat the mateing 2 days later ,as for food and care ,if shes get a good quality of food now and she getting plenty of protein she be alright ,you could start giving her lactol milk when you know if she is defonaly in pup,is the bitch worth breeding of?ho