[Lizzie]

Hello,

You can become pregnant if sperm does come in contact with the opening of your vaginal canal. The chances of getting pregnant from this are lower than having unprotected vaginal sex, but are still possible.

Every woman's cycle is different so having unprotected sex at any point in the month could possibly lead to pregnancy. It depends on when you ovulate and most times we as women don't officially know when that is.

There is no food that can prevent pregnancy.

I know you said you are grounded, but your profile says that you are nineteen. That legally makes you an adult and if you need to see a doctor your parents can't keep you at the house against your will.

The only way to know if you are pregnant is to take a pregnancy test fourteen days after you and your boyfriend were physical. Taking a test sooner than that can create a false negative. You can buy a pregnancy test over the counter at any grocery store or pharmacy.