Asking Tips for Night shifter working pregnant women

Mommies, could you share some tips for someone like me na night shifter. I am 6wks pregnant, no trans vaginal ultrasound pa kasi sabi ng OB ko at least 2 months para sure. kasi if now ako mag TVS baka wala pang makita. My pampakapit narin binigay OB ko. Siguro additional tips to keep my baby growing at an early stage and keep away from possible risks. Thank you.