It is possible to get pregnant if you have intercourse two days after your period. Normal women have a regular menstrual cycle, usually 21-35 days, the average is 28 days. Ovulation is 14 days before and after the next menstrual period, 3-5 days before and after this day. If a woman’s menstrual cycle itself is shortened, such as only 23-24 days, her ovulation period should be advanced accordingly, and environmental changes, sexual life belongs to the external stimuli can lead to sudden ovulation. Although the ovulation and safe period are calculated, the safe period is not safe. Currently there are more contraceptive methods, such as the use of condoms, intrauterine devices or oral contraceptive pills are better contraceptive methods, so try not to choose the higher failure rate of the safe period of contraception.