It seems that a sweep at 40 weeks is standard for first time mums but for subsequent babies it's not offered until 41 weeks. Does anyone know why? Is it simply because we are more likely to go into spontaneous labour by then so not deemed necessary? But if sweeps are (more or less) harmless and cost the NHS nothing, should I be able to request one at my 40 week appointment? My first was born 37+4 so I have been on tenterhooks for weeks now and really want to kick start this labour, especially given the changes to the induction process in current circumstances.