Could you be pregnant if started your period before sex?

You can't get pregnant if you started your period before having sex. Here's why:

* Periods involve shedding the lining of the uterus: This happens because an egg wasn't fertilized.

* Sperm needs an egg to fertilize: If there is no egg present, pregnancy can't occur.

However, it's important to understand that:

* Periods can be irregular: It's possible to ovulate (release an egg) earlier or later in your cycle than you expect.

* Sperm can survive for a few days: Sperm can live inside the body for up to 5 days. This means if you have sex a few days before your period starts, and you ovulate earlier than expected, pregnancy is still possible.

If you're concerned about pregnancy, the best way to know is to:

* Talk to your doctor: They can provide accurate information and advise you on appropriate birth control options.

* Use reliable contraception: Consistent use of contraceptives like condoms, birth control pills, or other methods can significantly reduce the risk of pregnancy.