Anyone know if there is a safe way to test a TENS machine before 37 weeks? I bought the Elle Tens 2 as I am 30 weeks now and wanted to start slowly buying things I needed for my labour bag. I don't need to test it in the sense of putting the electrode pads on, but just mean in terms of turning the little handheld device on and to be sure it is actually working. I realised after buying that I only have 30 days to return if there's an issue, and I'd be well past the return date if I wait until 37 weeks to switch the machine on. Kind of wishing I'd just waited a bit now...