Conception (fertilization) is nothing else as merge of female gametes with men's. Men's gametes continue to keep the functionality two days. In case the ovum does not enter an ovulation stage for this period, conception will not take place, and they will die. For this reason the most favorable day for conception - day of an ovulation.
Instruction
1. It is possible to calculate date of conception of the child by means of special calculators of conception which loads and loads on the Internet.
2. For definition of date of conception it is possible to resort also to a simple formula. Celebrate desirable date of birth of the child in the calendar. Take away from this number week. To the received number add on 3 months. Add to new number 2 more weeks. The final result is also date of conception. Only it is worth to remember that the similar result has very approximate character.
3. The most propitious moment for conception is the ovulation period. Respectively, exact date of conception and date of an ovulation coincide. At the extent of a menstrual cycle to equal 28 days, the ovulation usually occurs for the fourteenth day. At this time the probability to become pregnant is maximum. The ovum keeps the viability within a day therefore already every other day after an ovulation the possibility of conception is excluded. If the menstrual cycle lasts 21-24 days, then the ovulation comes for 10-12 day. If 32-35 days - that an ovulation begin for 16-18 day, considering from the beginning of periods.
4. Other way of definition of date of conception (ovulation) and days, favorable for conception, - the calculation based on graphics of basal temperature (in a rectum). Every morning, without getting up, at the same time the woman has to enter into a rectum (or into a vagina) the thermometer approximately on 5 centimeters. There is enough 7-10 minutes to take temperature. To an ovulation temperature is lower than 37 degrees, after an ovulation - temperature exceeds this figure a little. Day on the eve of temperature increase is also day of an ovulation.
5. It is possible to define date of conception (ovulation), being guided by the analysis of the slime emitted by a neck of the uterus. For couple of days before maturing of an ovum the dense and sticky vaginal allocations become viscous and transparent. These days the conception is almost inevitable.
6. To calculate exact date of conception, you can ask for the help the expert. For this purpose it is necessary to hand over only dab approximately at an average stage of a menstrual cycle. The gynecologist easily can determine by method of the simple analysis of slime from a neck of the uterus date of your ovulation to within 1-2 days.
7. But there is simpler method of definition of date of conception. Come into any pharmacy and acquire special tests for definition of an ovulation. They are subdivided into two categories: the first issues indications, proceeding from changes in composition of saliva, the second contacts to urine.
8. On the first place on reliability and simplicity of definition of date for conception there is an ultrasonography. The absolute result is guaranteed to you.