My dog is pregnant, and due any day now, I have a few questions and here they are: Do dogs get pregnant once after mating, but after they go out of heat, if that doesn't make sense I am sorry! or is it from the first time they mate, that their due date should be 63 days from there on? My dog is now leaking milk I think is what my mom said, she was running her hand across her belly and felt liquid she doesn't know if it was something else or milk. She vomited a few times lastnight, night sure if thats because of what she ate, or because of being pregnant. She looks like shes about ready to pop or them puppies are gonna kick their way out. She pants, but not sure if its due to being hot cause it is hot outside or shes hot, or going into labor. and do all pregnant dogs leak from their "whoohaah" or does it depend on each dog, she isn't leaking down there, never un-swelled either. we've been through this twice before, but it was years ago, and we've gone through pregnant cats many times before too, but cats are different of course. We just can't remember what the signs were before going into labor. She got, "stuck" around January 25th. please answer soon!