Maybe you could try those shops that sell travel accessories? But in my opinion, dont't buy anything first. Every pregnancy is different. You may or may not get morning sickness. Also, from what I know, nothing is predictable when you're pregnant. Things that should work won't and things that have no reason to work somehow will. Just take it as it comes. Your 1st trimester will pass sooner than you realise. 2nd trimester is much more enjoyable.