I'm glad you posted this question. I was wondering the same thing. I'm 6 weeks pregnant (will be early in the 2nd trimester for our upcoming cruise). I haven't had a problem with motion sickness on any of our other cruises but I know that pregnancy can change that so I wanted to be prefered.
If those bands help with morning sickness I might go get some right now and try them out. I'm willing to try anything.
Congrats on your baby