After pregnancy, women tend to be more concerned about the gestational week and month, and will record the pregnancy cycle. Some women are not very clear about the gestational week and month, and the difference between the two is vague, which leads to confusion about how to calculate and record the relevant cycle, and how to correctly record it. So, are the gestational weeks and months different?
The gestational weeks are calculated based on the last menstrual period, and ultrasound examination can only be used as an auxiliary examination. It cannot be fully relied upon that five months of pregnancy is equivalent to twenty-one weeks of pregnancy. Pregnancy is usually counted from the first day of the last menstrual period in medicine.
The due date is also calculated from this day, and 280 days of pregnancy is the due date, rather than calculating the specific time of intercourse and conception. As long as pregnancy is confirmed, the calculation of pregnancy days starts from the first day of the last menstrual period.
The precautions during pregnancy are as follows:
1. Avoid exposure to harmful substances: Do not dye nails or hair during pregnancy. Those who need to be exposed to harmful substances during work should take leave during pregnancy, especially during the first three months of pregnancy;
2. Avoid ionizing radiation, even if the computer is shielded, attention should be paid;
3. Maintain a regular daily routine and avoid staying up late or eating barbecue;
4. Individuals with a history of adverse pregnancy and childbirth should seek medical attention promptly to rule out cervical dysfunction and avoid mid pregnancy miscarriage;
5. Timely prenatal check ups, such as establishing a health card at 12 weeks of pregnancy and performing prenatal screening at 20-24 weeks of pregnancy;
6. Due to the presence of ionizing radiation at high altitudes and poor emergency response capabilities, some airlines also prohibit flying after 28 weeks of pregnancy.
