Ideas about amy pond's pregnancy?

ok so i watched the episode 'almost people' and omg i really want to hear peoples opinions on amys pregnancy and how that came to be. my theory is that amy got impregnagated (spell?) by the silence or something to do with the silence and i think that silence and the ladis with the eyepatches are working together somehow or something. and what about the little girl who regenerated at the end of 'the silence'? do you think that she could be the doctor and amy's baby? and i really want them to bring back donna noble into the story i loved her she was so full of energy :D so give me your thoughts :)