The chances of pregnancy cannot be calculated at one time, and need to be assessed according to the physical condition of both men and women, such as the time of intercourse.
The chances of pregnancy can not be calculated, if the woman’s menstrual period is regular in the 14th day after menstruation, women will ovulate, and in the ovulation of five days before to four days after the ovulation is known as the ovulation period, this phase of the coitus without measures, the chances of pregnancy will greatly increase, the other period of coitus the chances of pregnancy will be relatively low.
Other factors such as the physical condition of both men and women, some people will have infertility, as well as the posture of sexual intercourse, mental stress and other circumstances, can lead to sperm, egg activity is reduced, the chances of pregnancy decreased.
Therefore, if you want to seriously prepare for pregnancy, you need to do a pregnancy test to rule out other conditions to ensure the chances of pregnancy, and if you want to contraceptives need to do a good job of contraceptive measures, such as wearing a condom, oral contraceptive pills and so on, to avoid unwanted pregnancies on the woman’s physical and psychological harm.