Just to add to becvans impressive list; if you have come off of the pill in order to conceive would this be within a stable relationship? If not then how would you know about their sexual history and how safe it is to be with them unprotected - that is destructive behaviour, eh?
How about this nic, imagine you are a mother, and imagine you are the child of you. What would you say to that child that you loved so dearly if they proposed what you are proposing to do - be honset with yourself lovely! :-)
Spirit x