I agree with Kirsten74, I packed mine at 34 weeks (travel shampoo, soap etc) and then just added the dressing gown, hairdryer etc after my waters broke at 37 weeks. I wouldn't leave it to 39 weeks, I had both my kids well before then (DS was 38wks)! Especially the stuff for when you are in labour in the hospital such as the heat bags, even if you need to use them at home you will know where they are.