I have 3 cats, 1 chihuahua, and 1 dwarf rabbit. Is that too many?
The reason I'm wondering is because I really want to get my own dog (because the chihuahua is my mom's dog) and my parent's don't think it's a good idea. But I have a job and could pay for just about everything it needs (except spaying/neutering it, my parents would have to pay for that...)
But is that a lot of pets? I mean, they are all properly cared for and everything, but my parents aren't too thrilled about the idea of another pet. Is there anything I could say to convince them to get me a dog?
And how many pets do you have?

If you have the time, space and money to care for them then no, you don't have to many pets. I have 18 pets.
If you end up getting a dog please adopt. You can adopt one that is already fixed. You can look on petfinder.com or at shelters and rescues.

I have...
2cats
2rats
1guinea pig
1 rabbit
2chinchillas
and soon another rabbit!

as long as you can take care of them properly, get another! but please adopt! you will save a life, and gain a friend!

If you can't afford to pay for everything, it is too many.
I have 3 cats, 1 dog, 1 rat, 1 fish and 1 snake. I pay for anything they need and the dog and cats are fixed.
If you expect your parents to pay for anything, you should not be bringing it home!

There is really no set number for 'too many' pets.
Some people can happily keep 100+, while others cant even have one.

If all of your animals are happy, healthy, are getting the care and attention that they deserve without you feeling overwhelmed and you can actually afford to keep them then no, you dont have too many pets.
However, if your parents dont like the idea there is not much you can really do about it; their house, their rules. You have to respect their decisions. pets question and answers,www.5d2d.com

I have 36 pets.
2 dogs, 2 fish, 5 birds, 6 gerbils, 14 lizards and 7 snakes

Hun, you do not have to many animals! No way. There is no such thing! I have:
15 horses
6 goats
2 rabbits
6 dogs
8 cats
34 chickens
3 ducks

Animal lover

if you have the time,money and are cleaning up after them, then no

i have 3 horses, 6 rabbits, 2 chickens, 3 cats and we breed rats and mice ontop of that

How old are you? Are you prepared to take on the responsibility of the dog for the rest of it's life? What happens when you move out of home?
Are you aware that it is difficult to rent houses if you have a dog? And that it may be difficult to live in certain places with certain breeds of dog?
At the moment, you still live at home, and although you have a job- you don't even have a spare couple of hundred to pay for routine surgery. What happens if the dog gets sick? Or if it has an injury? pets question and answers,www.5d2d.com
Generally, it costs hundreds of dollars each year just for routine vet care for a dog.
If you can't afford surgery and medical bills, then pet insurance is a good option- but it still costs hundreds of dollars each year (but you can generally pay it monthly)

I am 26- and got my first dog about 15 months ago. But it was not an easy decision. I have wanted my own dog for a long, long time- but it can be difficult when you are between houses, when you don't have much money, or the time it takes to commit to a dog because you are working or studying too much.
At the moment, I have 9 pets- my dog, 2 parrots, and 6 rats.
I have kept plenty more at times, and I also rescue animals, so I have had plenty more on top of it- but at no time have I ever taken on an animal that I could not 100% commit to financially.
I don't have the money lying around if my dog gets sick- but my vet bulk bills, and I have pet insurance to cover any unexpected costs.

At the moment- for you, I do not believe this is a lack of experience, or a problem of currently having too many animals. You are not ready to commit to a dog- you have not thought through a long term solution, and you are not financially capeable of caring for your pet. Wait until you move out of home- see how difficult it is to make ends meet when you are living by yourself, see how much time you have to commit to a pet in between work and study, and then when you feel you have the right balance between money and spare time, then you should look into getting a dog. But now does not sound like the right time.

If you can't even afford spaying and neutering, then you can NOT afford all it needs. What happens if it needs medical treatment? Are you going to pay for distemper/hepatitis/parainfluenza/parvo, coronavirus, leptospirosis, lyme disease, bordetella, and rabies vaccinations? The wellness exam and fecal tests? Heartworm tests? Blood panels? Heartworm preventive? Dewormer? Flea and tick treatment? Ear mite treatment? Shampoo? Collar and leash/harness? Registration fees with the city? Microchip? Quality dog food? A regular supply of new toys and treats for training? A dog house or indoor kennel/crate? A doggy bed? Climate control for the dog house if it is left outdoors? Dog brush and nail grinder for grooming? Toothbrush? Toothpaste? Boots or pad wax for their feet when they have to walk on hot or icy roads or rough terrain?