The term “vacation” is generally used to refer to a woman’s menstrual period. If you have intercourse on the third day after your period, you will not normally get pregnant, but there may be an accidental ovulation, and if you do not use contraception, a fertilized egg may be formed and you may become pregnant.
For women with regular menstrual cycles and regular ovulation, the third day after the end of menstruation is in the stage of follicular growth, intercourse will not be pregnant.
If the menstrual cycle is not regular, ovulation will also exist irregularly, and ovulation by the nerves, the environment, the state of life, stress, the body’s hormone levels and other aspects of the impact of the day of ovulation may be early or delayed, so three days after the end of menstruation coitus may also be pregnant.
It is unreliable to rely on the calculation of ovulation to speculate the possibility of conception, so if there is no plan to conceive, it is best to take more reliable and precise contraceptive measures. It is advisable to consult a medical professional for details.