Can you be 12 years old and be able to have a baby?

Yes it is possible for some 12 year old to become pregnant. If they have begun theyr menstrual bleeding it is definitely possible and there is a possibility that if the timing is right that they become pregnant just before their bleeding was due to start. When the first ovum is released in a girl it will live for a couple of days and then start to break up, when that happens hormones are released that will cause the firs period to start so a girl can get pregnant before ever having menstrual bleeding. So be careful because you may never have experienced mentrual bleeding does not mean you cant get pregnant.