Yes, babies can move...anytime. No assumptions can be made, based on baby's position prior to labor's onset--and really, not even until mom is pushing! There are 'norms and averages' that tell us that a baby at +2 at 36weeks could be one that comes a bit early, or could be a baby whose position is already 'set' for birth. But of course, those 'norms and averages' do not cover every individual situation, and babies do move. Just helped at a birth where baby was at 0 station (engaged) at 38wks, and +2 in early labor....then she moved out of pelvis, turned this way and that (staying head down, but moved from left to right, down, up, down again) before active labor. We really began to think, early on, that we knew what was going to happen...we were wrong! But baby figured it all out in the end.