It is possible to get pregnant if you have intercourse on the 9th of your clean period on the 6th.
Theoretically, the day of ovulation is 14 days before the next menstrual period, and the ovulation period includes the day of ovulation and the entire period of 5 days before and 4 days after the day of ovulation, a total of 10 days, this period is the easy pregnancy. If a woman’s menstruation lasts a long time, 3 days after her period is clean is likely to be in the ovulation period, at this time intercourse pregnancy chances are higher.
If a woman’s menstrual period is short, 3 days after menstruation may not have reached the ovulation period, the chances of pregnancy are relatively low, but it is not absolutely impossible to get pregnant. Therefore, if there is no intention to get pregnant, no matter what period of time you have intercourse, you should do a good job of contraception to prevent unwanted pregnancy.