Start stretching, and opening up your body early. I’ve been using a foam roller, stretching to open up my diaphragm, hips, and just moving my skin around to keep good blood flow. Do what you can to get proper nutrition, and add magnesium glycinate into the mix. I didn’t focus on these with my first pregnancy and I was regretful.

Don't expect anyone to treat you in a special way because you're pregnant. Likely you'll just get scolded for lifting normal things and told to eat more.