Something else I found to help with a tummy ache / nausea is Licorish (sp??). I heard somewhere that you need to limit your intake though while pg.

I ate a stick just last night when I had bad reflux (I was waking up choking on what was coming back up Gross I know) and it gave me a horrible stomach ache, within a couple of mins I was feeling fine and my belly ache had gone.

I think aniseed has a numbing/soothing property in it naturally- but I could be totally wrong