The best time for pregnant women to consume bird’s nest is during the first and second trimesters of pregnancy. The placenta is not well developed and the embryo is in an unstable condition during early pregnancy, so if pregnant women do not take care of their daily life, miscarriage may easily occur. It is advisable to consume bird’s nest in moderation in early pregnancy to promote embryonic development, preferably until the third trimester. Bird’s nest is rich in collagen, amino acids and other nutrients. Pregnant women consume bird’s nest in moderation in early pregnancy to relieve early pregnancy symptoms such as vomiting and dizziness. Pregnant women have poor digestive ability during pregnancy and are prone to constipation and frequent urination, so consuming bird’s nest in moderation can also provide some relief. Pregnant women can consume bird’s nest to nourish their body during mid and late pregnancy.