The pull-out method, also known as withdrawal, involves a male partner removing their penis from the vagina before ejaculation to prevent sperm from reaching the egg. However, this method is not 100% effective and can result in pregnancy. Here are some key points from the search results:

• The pull-out method is about 80% effective.
• For every 100 people who use the pull-out method perfectly, 4 will get pregnant.
• In real life, about 22 out of 100 people who use withdrawal get pregnant every year, which is about 1 in 5.
• Not pulling out in time, especially during ovulation, creates a higher risk of pregnancy.
• About one in five couples that use the pull-out method during a single calendar year will get pregnant.
• Pre-cum can carry sperm, and cum near the vaginal opening can get inside and result in pregnancy.
• The calculated risk of pregnancy when using the pull-out method the right way is thought to be about 4% .

Based on the information above, the chances of getting pregnant during ovulation using the pull-out method are not zero. In fact, the risk of pregnancy is relatively high, with about one in five couples who use this method getting pregnant in a year. Therefore, it is recommended to use additional forms of contraception, such as condoms or birth control pills, for added protection.