To calculate the calendar by week pregnancy — nothing could be simpler
It is important to remember that the period of pregnancy is calculated from the date of conception, as would seem more natural, and the first day of the cycle last menstrual period preceding conception. It then begins to prepare for the release of a new egg, which is fertilized at the time of ovulation. Your doctor you can find a large number of different tables and graphs that will help in the calculation. In addition to the start date of the last menstrual period, they may be asked to provide the average cycle length for the last 2-3 months (it can range from 21 to 35 days, usually 28) and the average duration of the second phase — from ovulation to end of cycle. This time period is from 8 to 16 days. This files most often have ovulate exactly mid-cycle, and learn this day by measuring basal temperature. To calculate your own pregnancy calendar by week, you need to know is the date of the last menstrual period. In fact, this will be the starting point. Its proper name — the first obstetric week of pregnancy. Calculator you no longer need. Just mark this date.
Did you know that you definitely need to calculate your pregnancy calendar. For weeks, it will be convenient to follow the development of the fetus, to know in advance what changes in it and your status expect.
Nothing complicated. Celebrate each new week on the calendar numbers. Write down your feelings in a notebook or diary of your pregnancy. If it is difficult for you, you can take one of the computer programs with the ability of keeping records.
Don't panic if you failed to install the pregnancy immediately. Go for consultation to a doctor. After ultrasound examination and taking blood from a vein on the chorionic gonadotropin, it will likely be called the exact period of pregnancy. The answer is simple — the fetus develops according to the known laws. For example, on the 6th week formed a heart that begins to beat. And the hormone, even with high variance, still allows you to indicate the date of conception, as over time its concentration increases. So the doctor will be able to calculate the pregnancy calendar by week, based on research data.
As for the analysis on chorionic gonadotropin, it is the only measure that accurately confirms the presence of pregnancy. By the way, in men, this hormone is initially at a higher level. Women — less than 25 units. This will help to calculate your pregnancy calendar. For weeks the HCG level varies as upward and backward.
In addition, there are other tests for pregnant women, who must take any woman who bears a child. It is primarily a General analysis of blood, analysis of the RH factor. If you fear for the manifestation of hereditary diseases in the child, you can refer to genetic analysis. Taking miniature samples without harm to the life or health of the child, the researchers can calculate the likelihood of hereditary diseases in your unborn child. If the risk is great, you will be able to decide to keep the baby or terminate the pregnancy. In the presence of serious diseases it can be done on long periods. And while you can calculate a pregnancy by weeks.