Sex is an essential requirement to lead to pregnancy, and in clinical practice, with the exception of in vitro fertilization and artificial insemination, it will not lead to pregnancy if there is no sex. Frequent sexual intercourse will lead to a significantly higher chance of pregnancy because frequent sexual intercourse will increase the chance of sperm and egg combining, so it will be easier to get pregnant. If you are planning to get pregnant, it is advisable to rationalize your sex life when you are ovulating, and your chances of getting pregnant will be greatly increased. If you are not planning to get pregnant, it is best to use birth control or have sex at a time other than ovulation. Frequent sex will increase the number of sperm reaching the fallopian tubes, so the chances of getting pregnant will also increase.