These are probably stupid questions but here goes.
How do you establish birth order when there are children from outside a marriage or from more than one marriage. eg. In my family I would be my mother and father's second child but my mother's third child so which do I use. Also if there is a woman married because she was 'with child' but the husband was not the father of the child and there is no information on who the father is how and where do you put this information?