There are a few things that can make it more likely for you to get pregnant on your period. For one, your ovaries might still be releasing eggs even though you're menstruating. Additionally, your menstrual flow might not be as heavy as it usually is, which means there's more opportunity for sperm to reach an egg.

If you're trying to avoid getting pregnant, it's important to use contraception even during your period. If you're using a condom, make sure you use a new one every time you have sex. If you're using birth control pills, make sure you take them every day, even during the week of your period.

If you're worried about getting pregnant on your period, talk to your doctor. They can help you figure out which contraception is best for you and answer any other questions you have about getting pregnant.

Conclusion

There is no one definitive answer to the question of whether or not you can get pregnant on your period. However, it is generally thought that it is less likely to happen than if you have unprotected sex at other times in your cycle.