That's how it is sometimes, sadly.
I work in a vet's office. Some of the techs bug me half the time to breed Koda, and half the time to spay her. I have no intentions of doing either right now. She is 2.5 yrs old and will NOT be bred. She just isn't breedworthy, as great a dog as she is.
But they pressure me more about spaying. One even told me that if she wasn't spayed by three years, she WOULD get cancer and it would kill her. Really? This was my coworker (luckily this particular tech was fired LMAO).
Just let it go in one ear and out the other. (: And yes, find a new vet