I already have a tens machine (normal not one intended for labour) & planned to use it last time round but ended up forgetting to pack it & used a hospital one instead. Apart from the pads being bigger (which I can get bigger replacement ones anyway) & there being less programmes to choose from I couldn't figure out much difference between them. All the info on it says not to be used in labour & the ones intended for labour tend to say only to be used for that purpose. Does anyone know if there's any reason for this? Thanks