haha, fuck no. i had no idea what i was actually saying til prolly late term 2 or early term 3.
just start writing from whatever point. i wrote two sections on different areas first where i put my ideas forth (footnotes are good if you have ideas you want to insert but don't know where to put them at that point). i wrote an introduction when i had some idea of what i was trying to communicate with my mw, but that happened quite a while after i actually started writing. my first "draft" was abt 2500 words which did not link together, had no cohesive idea behind them and was at times very simplistic.
this is such a cliche, but just start writing. seriously. you don't have to sit down and write the whole thing at once; just get the thoughts out first, and you can put it together later.