The fertile window for pregnancy extends from about 5 days before ovulation to about 1 day after ovulation. After ovulation, the egg is viable and can be fertilized for approximately 12 to 24 hours. Therefore, you can get pregnant if you have sex within about 12 to 24 hours after ovulation, but the chances decline sharply beyond that period, and after about 2 days post-ovulation, it is generally not possible to conceive because the egg is no longer viable.

Key details:

• The egg survives about 12 to 24 hours after release during ovulation.
• Sperm can live inside the female reproductive tract for up to 5 days, which is why having sex before ovulation increases the chances of fertilization.
• The highest chance of conception is in the days leading up to ovulation and the day of ovulation itself.
• About 1 day after ovulation, the chance of pregnancy decreases significantly.
• By 2 days after ovulation, the probability of pregnancy is essentially zero because the egg disintegrates or is reabsorbed.

In summary, you can get pregnant up to about 1 day after ovulation, with the best chances occurring during and just before ovulation.