Does my sister need to carry it when she is pregnant and married?

No need.

When my sister gets married, the groom usually gets on the wedding car, and he doesn't need his brother's back. Moreover, my sister is pregnant, and the posture of her back will oppress her stomach.

Matters needing attention in pregnancy and marriage are as follows: 1. When you are pregnant and married, you should pay attention to your health and avoid being too tired. There are some things that others can do, so don't think about it yourself. 2, drinking on the wedding day is definitely indispensable, but if you are pregnant, the couple can't drink, otherwise it will have an impact on your body and the fetus. You can choose to use tea instead of wine. There must be many people on the wedding day, and there must be some who like smoking. At this time, the bride needs to avoid these people as much as possible, because second-hand smoke is still very harmful and has an impact on herself and the fetus. 4, pregnancy and marriage can not wear high heels, try to wear flat shoes. Prepare some food for yourself, such as milk snacks, and don't eat cold food.