What are the reasons for the early due date, and what are the reasons for the early due date? What d

As long as there are 38 weeks of pregnancy, it is normal, the expected date of delivery is 40 weeks, less than 38 weeks is premature, and more than 42 weeks is overdue. Because the due date calculated according to the menstrual cycle has a certain error, it is no problem to delay or advance a little.

It's nothing, the child may be a little hypoxic, lose a little, it's not expensive, it's best to have a caesarean section like the whole body, it's nothing, it's normal to have a little edema, don't worry, go to a regular maternal and child health care hospital, don't go to those hospitals that are advertised on TV, thank you,

It may be due to illness, or the fertilized egg implants too early, or it may be due to an early delivery time, or it may be caused by an emotional state, or it may be caused by a physical condition. It is normal to have an early due date, it is necessary to ensure the health of the body, but also to have a healthy diet, to check the condition of the body at any time, and to pay attention to the symptoms of childbirth.

I think there are human reasons, dietary reasons, work and rest reasons, mental reasons and physical reasons.

It may be that the psychological pressure is relatively large, it may be that the emotions are more excited, it may be that the expected date of delivery is wrong, it may be that it is strenuous exercise, you must calm your mind, don't be too anxious, and do a good job in prenatal checkup.

Production lead time refers to the length of time and days that the date of production of blanks, parts or components in each process stage should be earlier than the date of production of products.

Production lead time is a time standard to determine the input and output date of each process stage in the production process, and it is an important basis for ensuring the mutual connection of each process stage and ensuring the delivery time of the contract, so it is an important period standard for batch production operation planning. The production lead time is calculated in the reverse order of the product process based on the production date of the finished product, with the production cycle and production interval as the parameters.

The production lead time is divided into input lead time and production lead time

The input lead time refers to the number of days that the date on which the product is put into production at a certain process stage is earlier than the completion date of the finished product. The input lead time of a certain process stage of the product should be one production cycle earlier than the production lead time.

The production lead time refers to the number of days that the date of production of the product in a certain process stage should be earlier than the date of completion and production of the finished product. To determine the production lead time of a certain process stage of the product, in addition to considering the connection with the input lead time of the latter process stage, it is generally necessary to consider retaining a necessary insurance period.

Production lead time refers to the time it takes for a product part to be put into output at each process stage, compared to the production time of the finished product. So set a time in advance.

Production lead time refers to the process stages of a product part. The time when the input-output time is ahead of the production time of the finished product is in reverse process order. workshop-by-workshop, for example, in machining enterprises.

It is in accordance with the assembly workshop, the machining workshop, the blank workshop. The production lead time is calculated sequentially on a workshop-by-workshop basis.

In fact, to put it simply, the market date of the product is earlier than the customer's delivery date or the specified delivery date;

For example, the time for the customer to ask for the goods is January 1, and the actual product will be ready on December 20;

Of course, this is talking about finished products, and it is also a truth for accessories, because there is still an assembly time from accessories to finished products; For example, if it is still the shipping time of January 1, it will take 10 days for the parts to be assembled to the finished product, and the parts will need to be produced at least 10 days in advance, that is, before December 20.

Whether to give birth earlier or later than the due date depends on the condition of the pregnant woman. The situation of each pregnant mother is different, so whether the due date of giving birth is early or late cannot be uniform. Generally speaking, according to the pregnant mother with regular menstruation, 40 weeks of menopause is the due date, 37 weeks belongs to the full-term baby, and 42 weeks belongs to the expired baby.

At about 35 weeks of menopause, the fetal lungs are basically mature, and at 37 weeks, the various organs of the baby's development have been very mature. In terms of gestational age, a baby at 37 weeks is a full-term baby. Labor, from 37 weeks to 42 weeks are the normal range of delivery, for doctors, it is not recommended to regenerate after 42 weeks, because the expired baby may have turbidity in amniotic fluid and fetal distress, so by 41 weeks there is no delivery, will be induced.

Generally speaking, if menstruation is very accurate, the vast majority of fetal babies will be born around the due date, but only 5% of the fetal babies will be born on the due date, which is normal to be early or wrong by a week or two. Generally speaking, boys are mostly in advance, and girls are mostly wrong.

There are more births between 7 and 15 days after the expected date of delivery, mainly because the due date is inferred from the first day of menstruation 280 days after labor, and in practice, it is impossible to conceive on the first day of menstruation. Therefore, the probability of giving birth later than the due date is higher.

Now there are many punctual births, and now medicine is still quite developed, ** the whole is very accurate, of course, if you say that the difference of a day or two is considered early or postponed, it is not good to count, some delivery processes are more than 24 hours.