Why do I keep getting UTIs?

After I had my son in 2020 I got a UTI that was uncomplicated. Went away with antibiotics. I had NEVER had one before in my 30 years of life. But then I kept getting them. I am sitting here with yet another one, trying to schedule an appointment with the urgent care clinic for tomorrow. I hate constantly being on these antibiotics. I have done everything “right” to prevent them, and started taking probiotics for urinary health. I don’t understand why I keep getting them. 😭 Has this happened to anyone else? How can I stop this?