How to calculate the conception cycle
If a woman prefers to maximize the natural protection and does not want to have sex with a variety of contraceptives, or, on the contrary, wants to get pregnant, it can calculate the most favorable days for conception. To do this, you need to study your menstrual cycle.
Instruction how to calculate the cycle of conception
Each individual woman's menstrual cycle. But for all three periods characteristic. First - this is the maturation of follicles (14-16 days after the first day of menstruation). These days are activated estrogen - the female sex hormones that contribute to the maturation of the egg in the ovary.
The next stage - the ovulation (14-16 days with 1 day of menstruation). The follicle ruptures and the egg is released from the ovary. It then enters the abdominal cavity and from there into the fallopian tube.
The third period is called progesterone (15-17 to 28 day cycle). After the bursting of the follicle in its place appears yellow body to produce estrogen and progesterone (it prepares the endometrium for the introduction of the embryo and does not develop other follicles that may prevent the successful development of pregnancy). If conception has not occurred, the corpus luteum stops functioning, decreases the level of sex hormones and menstruation begins.
For safe sex conduct special calculation. Consider the length of your own menstrual cycle for at least six months. During this period, do not use hormonal contraceptives.
Select the longest and shortest menstrual cycles in the analyzed period. From the shortest subtract 18 and get the first day of the dangerous period (for example, 24-18 = 6). From the longest period subtract 11 (e.g., 30-11 = 19). As a result, you will know that dangerous days in your case - the period of the menstrual cycle from 6 to 19 day.
Note that this calculation is suitable only for those women who have a menstrual cycle is stable and does not change frequently in duration. If menstruation every month comes in different ways, you should consult your gynecologist. You have to do some tests. Without them, the exact calculation is unrepresentative and unreliable.