Sunday, October 9, 2011

Cycle and Fertility

The menstrual cycle is the process that allows for the maturation of oocytes and for the construction and destruction of the endometrium. This is a monthly recurring process under the influence of hormones from the hypothalamus (1), the pituitary gland (2) and the ovaries (ovaries), many physiological changes occur to the female genitalia. An average cycle lasts between 25 and 35 days. This is counted from the first day of your period until the first day of the next menstrual period. The length of your cycle can in the course of your life. Irregular cycles (duration) can be an indication for possible fertility problems.



A normal cycle can be divided into four phases:

1. The phase in which the egg ripens
2. Ovulation (ovulation)
3. Uterus for implantation Is a fertilized egg
4. The menstrual (uterine lining shock and non-fertilized egg off)


The time of ovulation is seasonal: in spring ovulation occurs at night or morning, in autumn and winter in the late afternoon or evening.

Every woman has two ovaries from birth in which half to two million eggs present. No further created as more new eggs. The millions of eggs that you start, in the course of time, cleaned up by a built-in program called apoptosis or cell death. They just do not die, but they are literally being dismantled: the membranes bulbs and they explode after which the body disposes of them properly.



 


When are you fertile?

If you want to become pregnant, it is obviously important to know when your fertile days. The most fertile time of the three days around ovulation. You can not tell in advance when ovulation will have only retrospectively. After ovulation the corpus luteum is formed which secretes progesterone, a hormone that prepares the endometrium for implantation.

If no fertilization occurs the corpus luteum shrinks and follows 14 days after menstruation. Unlike you often hear, is a regular ovulation cycle is not 14 days after only 14 days before menstruation place.

Example: you have a regular cycle of 28 days then you are indeed ovulating on the 14th day. But you always have a cycle of 32 days, then you are ovulating until the 18th day! Sex around the 14th day has little meaning ...

Ovulate at the right time for you to determine several things:

     count back from your first day of your period, your menstrual periods by a time to keep get more insight into your cycle
     a calendar cycle by tracking your basal body temperature curve in the market; ovulation gives a slight temperature increase
     Using an ovulation test
     apply the test sail








cycle Calendar

If you have some time trying to get pregnant then every time your period gets under way, a disappointment. To consciously trying to get pregnant it is important that you know how your cycle works. You can use a calendar cycle track. During ovulation take your basal body temperature slightly. If your daily temperature measurements at the same time you can capture the gradient in temperature curve. This way you can see when you're in your fertile period. Take the temperature at the same time each day (rectal) on. Preferably in the morning before you get up. Movement, eating, drinking or smoking can affect your basal body temperature.
Use the same thermometer. Start by measuring the first cycle day or the morning after the first cycle day. If you have received other instructions your doctor, then follow the instructions of your doctor, of course.
The first half of the cycle is characterized by a low temperature (36.6 ° - 36.8 ° C). There is no progesterone effect. The second half is characterized by a higher temperature (36.9 ° - 37.1 ° C).
At the beginning of menstruation temperature drops back to a lower level and begin again.

Note: The calendar cycle is not an appropriate means of contraception as the temperature rises only two days when ovulation has passed. The fertile period of the cycle can vary greatly, even in women with regular cycles.


Chance of conception

Without taking into account the time you ovulate you have the greatest chance of conception when every two days (ie about two to three times per week) intercourse.

Male sperm remains fertile about two days (on average approximately 48 hours). The female egg is only fertile one day (18-24 hours).
The best chances to get fertilized with the following schedule: every two days intercourse, from four days before until two days after the expected ovulation.
The chance of pregnancy clearly increases as a regular couple having sex.


  

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