It is possible for a woman to become pregnant 8 days before ovulation, although it is less likely than during or after ovulation.

Ovulation is the process by which a woman's body releases an egg from the ovary. It typically occurs around day 14 of a 28-day menstrual cycle, but can vary from person to person. Sperm can survive inside a woman's body for up to five days, so if sperm are present in the reproductive tract when ovulation occurs, they may fertilize the egg.

However, if intercourse happens 8 days before ovulation, it's likely that the sperm may not survive that long in the female reproductive tract to fertilize the egg during ovulation.

It's important to note that there are many factors that can affect a person's ability to conceive, such as age, health conditions, and lifestyle choices. If you are trying to become pregnant and have been having unprotected sex for at least a year without success, it's a good idea to consult with a healthcare provider. They can help determine if there may be an underlying issue and discuss possible treatment options.

Additionally, there are also certain methods such as ovulation tracking and fertility awareness that can be used to help determine the most fertile days of a person's cycle, and increase the chances of conceiving.

It's also important to maintain a healthy lifestyle by eating a balanced diet, getting regular exercise, and managing stress. This can help to improve the chances of getting pregnant and having a healthy pregnancy.

In summary, although it's possible to get pregnant 8 days before ovulation, it's less likely. It's important to consult with a healthcare provider if you're trying to conceive and to track ovulation and maintain a healthy lifestyle to increase chances of pregnancy.

click:

1)  Mayo Clinic Guide to a Healthy Pregnancy  

2)  Real Food for Pregnancy