What age do you think you should be able to have kids? Would you want any?

I want to have kids at age 21. I plan on being married to the right one already by then. We going to have three kids. Two boys and one girl. I want the girl to be in the middle so that her brothers can protect her, as i do to my younger sisters. Though i hsve no brothers an i am the oldest out of six children, i want my child to have the brothers i never had. In my opinion if you don't want any children then stay abstinence then. Best way to not get pregnant if you ask me. Or if you already into being such a sexually active person, then make sure you stay protected with condoms, and make sure your male spouse remove himself when... well you already know (i can't say it, against school policies :) ). Also if you do happen to get pregnant and unless you didnt get rape it is your fault. In other words, NO ABORTION LADIES!!