Restrictions on travel and access to vets have made it more difficult to get cats neutered during the coronavirus crisis.
If your cat has become pregnant, you might be worried about what to do when the kittens arrive.
Take a look at our top tips in our visual guide.
Learn how you can help the queen care for her kittens and make sure your cats get the nutrition and veterinary care they all need before they find a new home.
Kittens are delightful little bundles of curiosity. They're also fragile creatures that rely on their mothers for intense care during their first few weeks.
These pages will help you know what to expect - and when to call your vet.
Kittens should suckle from their mother (also known as the queen) until they are three to four weeks old.
It's very important that kittens feed from their mother soon after birth - ideally within the first two hours. This is because kittens need the queen's first milk, known as colostrum, which contains antibodies that will protect the kittens from disease. If any of your kittens do not receive colostrum, call your vet.
See below for a guide to weaning kittens when they reach three to four weeks of age.
See also: Care of newborn kittens
Talk to your vet about the following treatments for your kittens:
Flea and worming treatments - may be recommended for kittens as young as two days old, depending on the risk to the kittens and any treatment the queen had during pregnancy.
Vaccinations - The protection provided by the queen's colostrum fades when the kittens are eight to nine weeks old, leaving them vulnerable to disease. So ask your vet when the kittens can start a course of vaccinations.
Neutering - The queen can be neutered while she is still with or feeding the kittens as long as the surgical wound will not be affected by enlarged mammary glands. Fortunately the spay wound will normally be on her side. You do not need to wait until her milk has dried up, though it is usually best to wait until the kittens are no longer dependent on her and neuter her when the kittens are around eight weeks old. The queen can get pregnant again as early as one or two weeks after giving birth, so it is sensible to get her neutered promptly.
The kittens should be neutered when they're around four months old. If neutering is not carried out by then, you should separate males from females and the queen to prevent in-breeding. Ask your vet if you need help sexing the kittens.
Rehoming - Ask your vet when is the right time to rehome the kittens. This will depend on their behavioural development as well as the risk of disease. If possible, do not separate the kittens from the queen until at least eight weeks of age, unless your vet recommends this.
Weaning can begin at three to four weeks of age but will take several weeks.
It's important to separate the kittens from the queen when they're ready. Don't separate them before they reach eight weeks of age, as they will still be learning from their mum.
You'll need to find new homes for the kittens, and owners who will provide for them and have them neutered.
Kittens can be rehomed singly or in pairs, but if homed singly, make sure the new owners will be able to provide sufficient stimulation.
If homed in pairs, ensure the new owners will provide separate beds, bowls and toileting areas for the kittens in case they choose to live separate lives when they are older.