I don't know about whether or not bleeding must occur before pregnancy is possible, but I wanted to add a few things to watch out for...
I hope to God the female is the Bull Mastiff, because otherwise, you have a really serious problem :(. If you breed a female that is much smaller, or a smaller breed than the...
Best answer: I don't know about whether or not bleeding must occur before pregnancy is possible, but I wanted to add a few things to watch out for...
I hope to God the female is the Bull Mastiff, because otherwise, you have a really serious problem :(. If you breed a female that is much smaller, or a smaller breed than the male, it often goes very, very wrong. The puppies get too big for the mother to birth, and if she survives long enough to try to give birth, a puppy usually gets stuck, strangled, and then the mother dies quickly, as well as all the puppies inside her. It's not common for the mother and babies to survive without intervention in this situation, so you'll need a vet to let you know her chances and the puppies chances, and be present at the birth, which will cost money, and may not even be enough. So please go to the vet now, and they can tell you how best to proceed, so that everyone will be happy and alive.
I also worry about this because if the female is only one year of age, birth won't be easier on her. It's like how 12 year old humans, or younger teenager humans, that have babies are much more likely to have complications. Their body hasn't had quite enough time to get ready, and make space. So if the pit IS the Mama, she will almost certainly not have a body that can withstand giving birth to Mastiff pups, so she will almost definitely need a vet to survive.
To be honest, I'm not a huge fan of "Backyard breeders" or "BYBs." That means someone that isn't a professional at breeding dogs, and anyone that purposefully produces mix breed pups is definitely a BYB, but I really am just trying to alert you to the risks.
I also wish you hadn't let your female get pregnant, because I'm really sick of good dogs not getting homes, and BYBs are usually the ones that produce them, and it's not going to be easy to find good permanent homes for a pit/Mastiff mix.
My babies have both been rescues, one a "Rottbull," abandoned as a stray, obviously witnessed some trauma involving a gun, and stray for long enough he was petrified of being hungry, and my little girl Wren, discarded at some point before her first year, became a stray, so afraid of humans she almost killed herself trying to get away from humans (that were trying to save her.) Whatever happened to her first litter, it wasn't with her when rescuers caught up with her, so she probably either watched her litter freeze or starve, or was separated from them by a human. Three years after her rescue, she still panics if she isn't with us or her daycare, and will hurt herself trying to escape. She's a purebred Staffie (DNA test.)
Please, please, please contact and vet, and if your girl is pregnant, you need to decide what to do. If she IS the pit, you need to listen to vet and if they don't think she should have puppies, I think you need to do a gravid spay, you owe her a chance to live. If the vet agrees to help birth them and thinks it safe, you need to be vigilant about her vet care, and have contracts that you strictly enforce for adopters of the pup, that they MUST go back to you, and you need to be prepared to take back or keep many of the pups.
No dog should end up stray like my babies did. I would probably beat down the owners of my babies parents, because it was their job to make sure she never ended up scared and alone, freezing to death, full of parasites and starving. But she did, and that's on them. She got lucky, because she happened to end up with us, and we aren't going to abandon her even though she literally can't be alone ever, because she will panic, but for every dog like her, so many are killed a week after they are picked up.
Just be vigilant, and do right be your girl and her pups, okay? Make sure your dogs and their descendants all have the life they deserve.
7 hours ago