Ejaculation in the safe period basically will not get pregnant, but the prerequisite is that the menstrual period must be regular, and can accurately calculate the safe period, in this time intercourse basically will not get pregnant, but sometimes the menstrual period is affected by the environment, affected by the emotions, once the recent anxiety, insomnia or work stress caused by the menstrual period delayed or early, may lead to ovulation in advance or backward. If you are not planning to get pregnant, it is better to take good contraceptive measures to avoid getting pregnant and eventually needing abortion or medication, which will cause corresponding harm to the body, and be careful with contraception.