Pregnancy is calculated from the first day of the last menstrual bleeding. The beginning of pregnancy is determined as the first day of menstrual bleeding, when there is no pregnancy yet, because this day is an easy date to remember. It is important to keep this date in mind, especially if you are planning a pregnancy. In those who cannot clearly remember the last menstrual date due to menstrual irregularity and in those whose ovulation time is early or late, the onset of pregnancy is determined according to the first ultrasound measurements.
The average pregnancy period is 40 weeks, that is, 280 days. If we consider a month as 30 days, it is 9 months and 10 days. If we accept 4 weeks as 1 month when calculating the pregnancy period, the pregnancy is 10 months. But since these calculations can cause confusion, it is more accurate to calculate the pregnancy in weeks. It is recommended that you calculate the week instead of confusing yourself with questions such as which month has ended and which month have we entered. In addition, examinations and examination timing during pregnancy are determined according to the week of pregnancy.
MENCAL CYCLE
This cycle begins with the stimulation of the ovaries by the hormones secreted from the brain. . The release of the egg that develops in the stimulated ovary and prepares for fertilization (ovulation) occurs. At the same time, the lining of the uterus is renewed and prepared for a possible pregnancy. The estrogen hormone secreted from the follicle containing the egg affects the membrane covering the inside of the uterus (endometrium) and causes it to thicken. With the effect of the progesterone hormone secreted after ovulation, the endometrium becomes organized and becomes more suitable for the nesting and attachment of the embryo. If fertilization does not occur at the end of these preparations for a pregnancy that may occur in each menstrual cycle, the egg and the lining of the uterus are expelled through menstrual bleeding. And the cycle starts again in preparation for a possible pregnancy.
Assuming that ovulation occurs on the 14th day on average, there is no pregnancy yet in the first 2 weeks of the 40-week period. The beginning of pregnancy is considered to be the first day of menstruation, which is the first day of the preparation of the brain, ovaries and uterus for pregnancy. When this detail is not known, the pregnant woman and her partner may become confused, causing errors in calculating the gestational age and estimated time of birth. Some pregnant women may even be subjected to accusatory and suspicious attitudes from their partners. Although this detail is generally known, it should be explained at the first examination, especially for couples who are pregnant for the first time.
WEEK 1-Menstrual Bleeding
< br /> If you get pregnant this month, the first 4 days of your first week will be spent with menstrual bleeding. For the onset of pregnancy, you should keep in mind the date of the first day of the last menstrual bleeding. Hormones secreted from the brain stimulate the ovaries, and some of the pioneer egg cells that have been waiting silently in your ovaries since your birth are selected and begin to mature. The cells around the eggs, which are in small fluid-filled sacs called follicles, multiply rapidly and produce the hormone estrogen. Under the influence of this hormone, a new tissue layer develops in the inner part of the uterus. At the end of the first week, the diameter of the follicle containing the egg that will be fertilized in the future is 6-8 mm, and the thickness of the new tissue layer of the uterus (endometrium) prepared for the attachment of the embryo is 5-6 mm. Neither the follicle is ready for ovulation nor the inner layer of the uterus is ready for the embryo to attach.
Read: 0
