In order to deter­mine in which part of the cycle you are ovu­lat­ing, keep a sep­a­rate note­book in which you will make cal­cu­la­tions.

Mark the day of your peri­od on your cal­en­dar. This is the first day of the cycle. Cal­cu­late how long your cycle is. Ovu­la­tion usu­al­ly occurs two weeks before the end of the cycle.

Often in the ante­na­tal clin­ic, doc­tors give out spe­cial cal­en­dars for record­ing the men­stru­al cycle, which are very con­ve­nient to work with.

Dur­ing the cycle, the so-called basal tem­per­a­ture changes. To mea­sure your basal tem­per­a­ture, you will need to take your vagi­nal or rec­tal tem­per­a­ture every morn­ing after at least three hours of sleep for 5 min­utes. High accu­ra­cy ther­mome­ters must be used. Record the ther­mome­ter read­ings in a note­book. At the begin­ning of the cycle, before ovu­la­tion, the basal body tem­per­a­ture will be approx­i­mate­ly 0.2°C low­er than after ovu­la­tion. This moment of tem­per­a­ture increase is the peri­od of ovu­la­tion.

You can buy ovu­la­tion tests in almost every phar­ma­cy. They deter­mine the lev­el of luteiniz­ing hor­mone in the urine. At the moment when the test shows a pos­i­tive result, ovu­la­tion occurs.

Ultra­sound diag­nos­tics helps to deter­mine the day of ovu­la­tion most accu­rate­ly: the doc­tor per­forms an ultra­sound of the ovaries and tells you after what time ovu­la­tion is expect­ed. It is bet­ter to come to the recep­tion not at the very begin­ning of the cycle, but clos­er to the mid­dle. The dis­ad­van­tage of this method is, of course, the cost and also the waste of time.

In addi­tion to the above meth­ods, some women are guid­ed by such indi­ca­tors as a change in the nature of vagi­nal dis­charge or ovu­la­to­ry pain, but these signs are rather blurred, and they should be observed only togeth­er with the rest.

So, after you have found out on what days of the cycle ovu­la­tion occurs, you can cal­cu­late in what peri­od con­cep­tion is pos­si­ble. Since sper­ma­to­zoa can live in the female gen­i­tal tract for up to 5 days (accord­ing to some sources, up to 7), then, accord­ing­ly, about 5 days before ovu­la­tion, the days favor­able for con­cep­tion begin. This peri­od ends approx­i­mate­ly 3 days after ovu­la­tion.

In fact, there are a lot of ways to cal­cu­late dan­ger­ous days. Some of them are more pop­u­lar and are con­sid­ered more reli­able, some less. Let’s dwell on the gen­er­al­ly accept­ed cal­cu­la­tion options. It should be not­ed right away that if you need to cal­cu­late per­son­al dan­ger­ous days as accu­rate­ly as pos­si­ble — the solu­tion will be the com­pi­la­tion of a natal astro­log­i­cal chart, tak­ing into account all the details of your birth and life stages. Only in this way it will be pos­si­ble to iden­ti­fy dan­ger­ous days for each indi­vid­ual per­son with high accu­ra­cy. It is very prob­lem­at­ic to make such a cal­cu­la­tion on your own, so it is bet­ter to con­tact a pro­fes­sion­al astrologer.

How­ev­er, there are tech­niques that allow you to iden­ti­fy unfa­vor­able and dan­ger­ous days in gen­er­al, which will sure­ly allow you to avoid unnec­es­sary trou­bles and stress­es with the right approach.

First of all, in astrol­o­gy, the days of eclipses, both solar and lunar, are con­sid­ered dan­ger­ous. Eclipse days are always the most dif­fi­cult and fraught with dan­ger­ous moments of the year, even if the eclipse is par­tial — on such a day one should be extreme­ly care­ful and atten­tive. You should be pre­pared for moral dis­com­fort, com­pli­ca­tions in rela­tion­ships, as well as very real dan­gers that you may encounter.

Also very often the lunar cal­en­dar is used to cal­cu­late dan­ger­ous days. The influ­ence of the Moon and the process­es tak­ing place on it has already been con­firmed both by many years of research expe­ri­ence and sci­en­tif­ic jus­ti­fi­ca­tions.

Based on the lunar cal­en­dar, for each lunar day, a fore­cast is made of the aus­pi­cious­ness of the day for cer­tain under­tak­ings. Some days of the lunar cal­en­dar are sim­ply dan­ger­ous, but again in strict­ly defined areas. The use of the lunar cal­en­dar in prac­tice will allow you to avoid many unpleas­ant and dan­ger­ous moments in your life and make it more har­mo­nious.