5 ways how to calculate ovulation: the pros and cons of each

Ovulation is called the yield ripe and ready to fertilize an egg from the ovary. On average, a single cycle produces only one egg is viable and it is about 12-24 hours, it was during this short time she has to meet with the sperm that conception occurred. Be able to calculate the days of ovulation yourself you need to know which days are best suited for pregnancy - for conception, or vice versa, for protection from unwanted pregnancy. What are the ways to correct calculate ovulation dateyourself and how reliable they are?

Despite the fact that the egg does not live long, the period of fertility - the most favorable time for conception, is 4-5 days. This is due to the fact that the sperm, as opposed to the ovum itself, quite hardy and can wait for an egg for 3-4 days. Therefore, in planning the most important task - to know the date of ovulation. There are several methods that can help maximize correctly and accurately determine ovulation.

Calendar method.Such a method is not the most reliable and depends on many factors. It will work only if you have a regular cycle, and it needs to keep a calendar month cycle and know exactly the start date, end and duration of menstruation.

Ovulation usually occurs 14 days before the start of the next menstruation, the average woman in a cycle of 28 days, it will be a 14 day cycle. Due to the "survivability" of sperm, fertility period will be approximately 10 to 14 day cycle.

But ovulation is very dependent on the individual characteristics and lifestyle, in addition, there are a number of features that the calendar method is not effective:

• irregular cycle;
• breast-feeding;
• recent generations;
• approaching menopause;
• oral contraceptives or hormonal drugs shortly before the planning.

Ovulation Test.Ovulation Test works on the same principle as a pregnancy test, the only difference in hormones. Before ovulation in the female body increases the amount of estrogen, and he, in turn, causes a sharp increase in luteinizing hormone. As a result of the burst of the hormone is able to enter the egg from the ovary - and ovulation occurs. Ovulation tests are able to detect a surge of luteinizing hormone to within 99%, and they can be used to calculate the most window fertility cycle.

Physiological method. In this method, the mean accuracy as a woman should very closely monitor changes in the body, and keep track of the symptoms. Ideally, if you combine a calendar and physiological methods, then the probability of "catch" ovulation at times increases. So signs of ovulation:

• amount of precipitates increased;
• the consistency of selection similar to egg white;
• basal temperature is increased by 0,5-1 ° C, but it is necessary to properly and regularly measure;
• breasts swell and become painful;
• bloating and abdominal discomfort;
• dragging pain in the abdomen.

Instrumental method.At present, this is probably the only way with high efficiency. Calculate ovulation can use ultrasound, it must be carried out several times per cycle to monitor follicle size and most accurately assumed ovulation date.

• The first ultrasound should be performed on 7-10 day cycle to determine the dominant follicle;
• then 3 days later to control the dynamics of growth and know the approximate date of ovulation;
• and third ultrasound on the day of ovulation expected to confirm it.

The accuracy of this method is more than 80%, but it is quite costly both financially and physically, even if a long time do not get pregnant, then this method will be an excellent solution.

Basal temperature. With the fertile phase can be determined using the change of basal body temperature (BT) cycle, but this method requires a clear and consistent action mode, and takes some time. To "meet" to schedule your basal body temperature and to understand how it works, it must be measured over several cycles. There are certain rules that can not be broken: measured rectally, in the morning, not getting up and always in the same time.

By measuring the temperature of each day, you will be able to build graph of basal body temperature and to determine the date of ovulation:

• In the first phase of the cycle TDB level ranges from 36.1 to 36.7 degrees;
• One day prior to ovulation, the temperature drops 0.5 degrees;
• During ovulation the temperature reaches 37-37,4 degree and remains the same after ovulation.
• A few days before menstruation is reduced to 36.7-36.8 degrees.

Unfortunately, many factors can affect the basal temperature;

• lack of sleep;
• travels;
• alcohol consumption;
• physical exercise;
• sexual intercourse;
• stress;
• cold;
• some medications.

Special applications. Now there are lots of applications and programs that can help calculate the expected date of ovulation. The fact that such applications are based not only on the calendar method, they are able to take account of your individual cycle and Features: take into account the emotional state, fluctuations in the cycle, menstruation duration, swing weight, physical activity And so on. With all these data, the application can predict ovulation and the menstrual period, and the longer you run this app, the more accurate data. These women a lot of calendars, choose the one that suits you, has the necessary features and interesting interface.

Also be sure to ask about What are some common mistakes when planning to become pregnant prevent

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