The first time the pregnant mother gave birth to the wrong date, the “October” of pregnancy in October is not what you think

When it comes to pregnancy, we have all heard a saying, “pregnant October.”. However, many people who do not know that “October” here is not the same concept as what we think of as “October”. There is a slight difference in the way dates are calculated. < p > < p > everything was going well. It wasn’t long before Xiaolin found out she was pregnant, which made them both nervous and excited. They were full of expectations for the unborn baby. However, both of them were novices and had no experience. The first time they went to the production inspection, something went wrong. < p > < p > when Xiaolin knew that she was pregnant the first time, Xiaolin called her mother and told her about it. Her mother inquired about the situation before and after, and then judged the approximate pregnancy time for her daughter. She told her daughter to go to a prenatal examination at 12 weeks’ gestation. < p > < p > results when the day came, when Xiaolin and Xiaofeng went to the obstetric examination with great enthusiasm, the doctor said, “you are a little late here. Remember to be on time next time. Don’t miss the date. < p > < p > Xiaolin and Xiaofeng are a little confused. They remember three months. After talking with the doctor, they found that they had made a mistake. The “three months” of pregnancy was different from the normal “three months”. < / P > < p > in other words, “October pregnancy” and “ten months” are different. In fact, it is not the fault of the couple. This is a cognitive error that many unknown novice parents may make. < p > < p > in fact, the normal date of pregnancy in October is more than 9 months, because in medicine, 28 days are taken as an obstetric month, and “October” actually refers to 280 days, which is nearly one month less than the 300 days of normal 10 months. Many people ignore this point, and they will make mistakes similar to Xiaolin’s husband and wife in remembering the date of birth examination Period. < / P > < p > this is a headache for many people. Many people don’t realize that they are pregnant, and often they don’t come to menstruation for several months. But at this time know that they are pregnant, and do not know how to calculate the time of pregnancy. < / P > < p > in fact, it is not difficult. The initial time of pregnancy is calculated from the first day of the last menstruation. As long as you query the first day of the last menstruation and count to the current date, you can know how long you have been pregnant. < / P > < p > in addition, the time to calculate the expected delivery period is also related to the start time of the last menstruation. The normal pregnancy time limit is about 40 weeks, and the algorithm of the expected delivery period is 40 weeks after the date of menstruation. There is a simple way to solve the problem. < / P > < p > if the month of the last menstrual period is greater than 3, it will be reduced by 3; if it is less than or equal to 3, 9 will be added; if the specific number of days will be 7, the final date will be the expected date of delivery. For example, if the last menstrual period is April 13, then the expected date of delivery is april-3 = January, 13 + 7 = 20, that is, January 20 of the next year. Of course, it’s not the expected date of death. < / P > < p > in addition to the common pregnancy precautions we know, there are also some points that are easy to be ignored. Pregnant mothers need to pay special attention to avoid risks to the fetus and themselves. < p > < p > coffee is a very common refreshing drink in our daily life, but pregnant women must try to stay away from coffee, even if they do not give up completely, they should also pay attention to control their intake. < p > < p > according to the American Society of Obstetricians and gynaecologists, a large amount of caffeine intake during pregnancy may damage the fetus, and it is recommended that the daily intake of caffeine by pregnant women should be controlled below 200 mg < / P > < p > we all know that pregnant women should stay away from second-hand smoke, but many people do not have a deep understanding of it. Second hand smoke may cause more harm to the fetus and pregnant mother than we think, not only has the risk of teratogenesis, but also has an impact on the child’s personality. < p > < p > according to a domestic maternal and child survey, mothers who have been exposed to second-hand smoke for a long time will start to have more violent children after the age of five, and their attention will not be able to concentrate. However, air pollution has a great impact on pregnant women. If you breathe air polluted by traffic fumes and industrial dust during pregnancy, it may lead to low birth weight of the fetus, and the harm will be greater. < p > < p > therefore, in addition to wearing masks, the best way for pregnant mothers is to avoid rush hour travel and try to stay away from the polluted air. At least they can hide. < / P > < p > in short, pregnancy is never an easy thing. From the calculation method of pregnancy to the matters needing attention during pregnancy, both husband and wife should pay more attention and be cautious. In any case, the most important thing is to give birth to a baby smoothly, healthily and healthily. You can play with mobile phones during pregnancy, but these four methods of “hurting your fetus” are not advisable. Be careful of the damage to Taibao