How Big Do The Cats Nipples Get If They Are Pregnant?

The pregnant cat’s nipples will become pink after about 3 weeks.  Early on they do not increase so much in size.  You may also notice a change in behaviour.  Pregnant queens will often become more affectionate, quieter and sleep more.  Weight gain will be noticeable by about 5 weeks.  After 6 weeks, her mammary glands will begin to produce milk and her nipples will grow considerably.  These are all suggestive signs, if you want to know definitively if your cat is pregnant, your vet will be able to confirm the diagnosis.  

The pregnant cat’s nipples will become pink after about 3 weeks.  Early on they do not increase so much in size.  You may also notice a change in behaviour.  Pregnant queens will often become more affectionate, quieter and sleep more.  Weight gain will be noticeable by about 5 weeks.  After 6 weeks, her mammary glands will begin to produce milk and her nipples will grow considerably.  These are all suggestive signs, if you want to know definitively if your cat is pregnant, your vet will be able to confirm the diagnosis.

About half a cm bigger when they are 3 -4 weeks in

Around the size of a quarter

My cats is 4 days pregnant

My 11 month old cat has a bigger tummy and sleep and eat more. I can tell you some information I found from Google. Cat's nipples DO get bigger. My cat's nipples wasn't even half a cm before and now it is half on a cm.