These are some items that may help mamas & pregnant folks during first their trimester:
A belly band helps relieve pain by giving support to the lower back.
Having an infused water (with fruit) bottle handy keeps folks hydrated and their electrolytes up.
Peppermint oil or ginger candies can help reduce nausea.
Prenatal vitamins & probiotics can help provide nutrients you & your babe will need. Consult with your Dr. to see which ones may be best for you & your body.
A good cocoa butter can help moisturize skin as stretch marks develop.