You are indeed right ramywhite...

But are you going to be able to live with yourself if you are wrong???

A lot of things (like interferential) are simply not worth the risk. If interferential was the most marvellous therapy that could cure someone's pain when nothing else can help, it may be worth a risk.

But for simple musculoskeletal pain that can probably wait 2 more months, it is not worth the risk of having an unborn baby damaged possibly for the rest of their life.

There is not safe way to test these things without putting babies at risk. I personally prefer to sleep well at night...