The chances of getting pregnant by having intercourse from day 1 to day 10 of your period are very small, but it is not completely impossible to get pregnant.
Having sex from day 1 to day 10 of menstruation is very unlikely to result in pregnancy. If a woman has irregular periods, this may result in early ovulation, at which point pregnancy is also possible. However, it is generally not recommended to have sex during menstruation.
During menstruation, women’s hormone levels are low and their resistance is low, so having sex is likely to bring pathogenic microorganisms into the vagina and cause infections, so you can have sex after your period is over. When having sex, you can use condoms correctly, which can effectively prevent the occurrence of sexually transmitted diseases and can also be used for contraception.
If you have intercourse and your period is delayed, there is a possibility that you may be pregnant, so you should seek medical attention.