Dogs are pregnant for approximately 9 weeks (63 days give or take a couple of days either way). If they only tied once it depends on where she was at in her heat cycle - but it does only take one breeding for the pregnancy to occur.
Is there a reason why she is not spayed? Where you planning on breeding her anyway? How old is she? You have a small window of time after she is bred to make the decision concerning whether you want to be a breeder or whether you want to abort the litter and have her spayed. If you never intended to breed her and don't want to be a breeder (and one litter makes you a breeder) I would recommend you talk with your vet about considering aborting the litter.
If you choose to allow her to have the puppies you need to find a couple of good books on breeding/whelping a litter (I recommend "Breeding a Litter" by Beth J. Finder Harris and "Successful Dog Breeding" by Chris Walkowicz and Bonnie Wilcox DVM) and do all the reading you can. Look into what complications you might need to be prepared for with your females specific breed (some breeds are more common for needing c-sections, some breeds are not great natural mothers and need help, some breeds have HUGE litters of puppies and you'll want to be prepared for that).
You also want to speak with your vet about what you need to be prepared for concerning the litter. Talk about the cost of the first set of vaccinations (VERY important to give to avoid contracting diseases like Parvo and Distemper that not only can kill the whole litter, but also make your home a host site for the diseases and make your dogs susceptible to them) and worming (most puppies are born with worms). Talk about dew claw removal if it's recommended for your breed and how much it will cost and when your vet wants to do it (should be done between 3-5 days). Talk about the cost of a c-section so you have that money or part of that money set aside (my vet charges close to $1000 for a c-section).
Then you need to find a place to whelp the puppies. Puppies can't regulate their own body temperature until they are 2-3 weeks old so the unheated garage or a drafty basement is not an option for delivery. You need to look into what supplies you'll need for an emergency (to bottle feed a weak puppy).
You can have your female X-rayed at around 8 weeks into her pregnancy and for a 1st time breeder I recommend this. It lets you know how many puppies you are expecting and verifies that their size looks consistent and that their head aren't too large for you girls pelvic area.
Something else to consider - if your girl delivers a puppy with some kind of genetic defect, are you prepared to keep the puppy or find it a home that is prepared to care for a special needs puppy? I ask, because I have a deaf Sheltie that I rescued after her breeder dropped her off at the local Humane Society. She was born deaf and her breeder, who only has 1-2 litters a year "recreationally" wanted nothing to do with a special needs pup. As a breeder you really should be willing to be responsible for every puppy you bring into the world.
I'll also let you know, if you do things responsibly and take good care of the pups and the Mom, you're not going to make any money. Don't expect to. At best, you MIGHT cover your expenses. So don't choose to have the litter if you think it will make you a couple of dollars. It's also a lot of work and a lot of lost sleep and tears. You may lose your female dog. It happens more than people think. You may also lose multiple puppies or even the whole litter. Breeding a litter has it's joyful moments - but it also has it's heartbreaking moments. Be prepared to find good homes for each puppy you whelp. If your dog is a large breed like a German Shepherd you may have as many as 15 puppies to find homes for. This also means you have to clean up poo for 15 puppies. :) You may have puppies without homes at 12, 14, 20 weeks old that you have to house, care for, and pay all the vet bills for on their first vaccinations and wormings.
It is YOUR decision and I honestly don't care either way which decision you make, but I hope you'll make an educated one that considers the health and well being of your dog first and foremost! Good Luck! And keep posting your questions. There are a lot of knowledgeable breeders who visit this forum and can help you give your dog and puppies the best care!!!
Here is a website that is a good quick reference for novice breeders. Also, be sure to make an appointment with your vet to discuss any difficulties your dog may have with whelping, etc. Hope this helps!
Abbylynne Thank you so much for your post. I have an AKC Silky and so does my friend. They have been Vet checked and he feels like they are in excellent condition to breed. We have bred them and not for money. My son and wife. Pam my friend with the male and i will keep one. If any extras they will stay with me or only go to homes of people I know. This is a one chance deal Angel will be sprayed as soon as possible after the puppies . She is a small silky and so is the daddy. So many people on here make you feel like a real dummy but you gave the information that really helped and this is what this forum should be about. First time I have posted but have been on this site for some time. Again Thank You so much for your information.
abbylynne, as soon as I saw the topic I almost didn't bother opening it. So many new members come here asking this very question and in the past many have been mocked, called irresponsible and given a lecture on life in general. All that aside the deed was been done and there are people out there wondering what to do next. Just wanted to say great post, you gave a new member good information without making this person feel like they are a horrible member of society. Great read :)
Something I've kind of learned is that a lot of times people who want to breed a litter - or breed in general - make that decision not understanding the entire picture of things that can go wrong or the work that is really involved to do things responsibly. This doesn't mean they are ignorant, or horrible people. It's usually more a result of the fact that our society tends to paint a really pretty picture of having puppies. When you look at a breeder's website it's all pretty flowers and cute faces. They almost never have anything written on their site about how much work it is or how many problems they have dealt with as a breeder.
Like someone else said - the deed is done. All you can do is try and gain as much knowledge in the next several weeks to be able to give your girl the care she needs. AFTER she whelps the puppies is when YOUR work begins. I just wanted to emphasize that good puppy care is really important in the start of the little ones lives. Good vet care, good socialization, lots of love and patience, and a safe, warm place for them to grow up are the most important things. Don't compromise in these areas. What you as a breeder puts into those puppies for the first 8-12 plus weeks is really important (and please don't send them to homes before 8 weeks!!! They aren't ready yet!).
I did all my own initial research independently when I started raising my Shelties. It took me about 2 years to compile enough information that I felt comfortable having my first litter BUT I still missed a few key things that if I'd had someone else's input I would have done differently.
The last thing I wanted to add - Please, if you have questions ask them. Don't get offended if you get a tough love type answer though. Sometimes what we don't want to hear is the real answer to our question and while you may not be able to follow everyone's advice to the letter - consider that if more than one person says something there may be a grain of truth to what they are saying. Look into it! Find our for yourself if they are right. And keep reminding yourself that breeding is never easy. It shouldn't be, because with the level of joy we can get from the experience it should be equally weighted with lots of work and tough times and decisions. That' part of what makes it so wonderful!