Here are some things to pay attention to:

1. Working environment: Pregnant women should avoid contact with harmful substances, such as chemicals, radiation and noise. If these harmful substances exist in the working environment, measures should be taken to protect the health of pregnant women.

2. Work intensity: Pregnant women should avoid overwork at work, especially in the third trimester. If you need to stand or repeat actions for a long time at work, take a proper rest.

3. Working hours: Pregnant women should avoid overtime and night shifts, so as not to affect the health of pregnant women and fetal development.

4. Diet and rest: Pregnant women should pay attention to diet and rest at work to ensure adequate nutrition and sleep.

5. Medical check-up: Pregnant women should have regular prenatal check-ups to ensure the health of themselves and their fetuses.

In short, pregnant women need special care at work, and employers and colleagues should give them understanding and support to create a safe and healthy working environment for pregnant women.