How big is the gestational sac at 48 days of pregnancy?

At 48 days of pregnancy, the diameter of the gestational sac is about 18 mm. The growth and development of the test tube embryo is a continuous and gradual process. The gestational sac is produced on the 30th to 40th day of pregnancy, the embryonic bud and fetal heartbeat are produced on the 40th to 50th day of pregnancy, and the fetal heartbeat is produced on the 50th to 60th day of pregnancy. Based on the B-ultrasound examination in the early stages of pregnancy and the accurately measured diameter of the gestational sac, the duration of pregnancy can be roughly estimated.

If two diameters are measured, the formula is: pregnancy time (days) = (a + b) / 2; if three diameters are measured, the formula is: pregnancy time (days) = (a + b + c) / 3, where a, b, and c are the diameters measured by B-ultrasound, and the unit is mm.

In the early stages of pregnancy, many pregnant mothers have a loss of appetite due to severe pregnancy reactions. At this stage, pregnant mothers do not need to deliberately force themselves to eat nourishing foods. They can choose their favorite foods, but avoid eating too much cold or irritating foods.

The early stages of pregnancy are the beginning of the growth and development of every organ in the human body. Therefore, during this stage, pregnant mothers must pay attention to supplementing vitamins and minerals, especially folic acid tablets. If folic acid tablets are insufficient during early pregnancy, it is easy to cause fetal malformations. For mothers who don't know when they will be pregnant, it is best to start supplementing vitamins and minerals during the pregnancy preparation period.

In addition to this, fresh fruits and vegetables are also very helpful for expectant mothers. They can also eat more blood-replenishing and qi-replenishing foods to avoid anemia during pregnancy.

Most pregnant women in the early stages of pregnancy are troubled by pregnancy reactions and have poor appetite. At this stage, pregnant women do not need to deliberately force themselves to eat more. Instead of worrying about meat every day, it is better to choose more of their favorite foods to increase their appetite. As for greasy food and food that speeds up metabolism, there is no need to eat them indiscriminately. Pregnant mothers should eat according to their own appetite. There is no need to deliberately eat more or less. Eating small meals frequently and eating when you can is the main strategy of the diet for pregnant women during this period. If there is a certain change in eating habits, there is no need to avoid it. Eating some sour foods may increase appetite.