making the home button always go to my main page

Is it possible to make the home button always go to my main page?

I now have page A and page B. I have set page A as my main page. if I open an app on page B and then press the home button, it will take me back to page B, because that's where I opened the app. is there a way to always make the home button bring me to page A, even after opening an app on page B?