The 26-year-old batsman is due to wed his pop star fiancee Jessica Taylor in December. But before then he is likely, if fit, to play in 11 Tests, the Twenty20 World Cup in his native South Africa and several one-day internationals.
So congested is England's fixture list they are due to fly to South Africa the day after their seventh one-day international against India in September.
"There is a lot of cricket being played these days and time will tell how fatherhood changes my attitude," Pietersen, who would like to start a family, told July's edition of the Wisden Cricketer magazine.
"I don't like spending time away from my family, I don't like it at all, especially since I met Jessica. All these future tours that just get chucked in here and there, they don't make me happy.
"There are so many exciting things to look forward to in life other than cricket and I've changed a heck of a lot both as a person and a player."
However, he insisted he still had ambitions as a cricketer.
"I've always said I want to be a great player - the best I can possibly be - and if that means I end up as one of the best players around then that's just how it is.
"A lot of people have criticised me for getting ahead of myself but it's just my ambition. That's the way I've been brought up, to challenge myself."
Pietersen, who scored a Test-best 226 in the second Test against West Indies at Headingley last month, is set to take his place in the England squad for the fourth and final Test of the series starting at the Riverside on Friday.