First, you need a great office chair for the job. Look at our recommendations above if you’re unsure whether your current chair is cut out for the responsibility. Next, you should ensure that your posture is correct.
Keep your head straight and in line with your spine. You should sit facing your desk rather than with your legs to the side, so that your spine is directly parallel to the desk. This will prevent twisting in your spine.
Make sure that your shoulders are back and not pointing forward. Both feet should be on the ground with your knees pointing straight ahead. You should try to make your back as tall as possible while keeping it flush to an ergonomic backrest.
You should keep your weight as evenly distributed as possible all down your body. Leaning to one side will put more pressure on one hip and leg, making that side more uncomfortable.
Pregnant women shouldn’t sit in the same position for longer than 30 minutes to avoid too much pressure being put on your hips. For this reason, get up and move around every half hour, or at least reposition yourself slightly.