In clinical terms there is no age to get pregnant. It is relative to the physical maturity of the body. Some very young children have become pregnant through no fault of their own. In a recent news story, a ten year old became pregnant. I have read in medical journals about a 6 year old that became pregnant.
Once the body is physically ready to conceive, it may do so. This does not however mean that you will be mentally, financially, or mature enough to be pregnant.
In societal norms there is a different answer. The age one should become pregnant is determined by the culture of which you are a part (not to mention laws).
Answer One: It depends on when u want 2 get married.but to me as from age 23.at least above 18years.