Is it safe to have intercourse 3 days before the period?

It depends on your personal circumstances and preferences, but generally speaking, having intercourse 3 days before your period is unlikely to result in pregnancy. Here's why:

1. Ovulation: Ovulation, which is the release of an egg from the ovary, usually occurs 12 to 14 days before the start of your period. If you have a regular 28-day menstrual cycle, ovulation typically occurs around day 14.

2. Safe period: The safest time to have intercourse without the risk of pregnancy is during your "safe period," which is the time in your cycle when ovulation is unlikely to occur. This period usually begins 7 days after the start of your period and ends 2 days before ovulation.

3. Conception window: The window of time during which conception is possible is relatively short. Sperm can survive in the female reproductive tract for up to 5 days, so if you have intercourse during the fertile window (the days leading up to and including ovulation), there's a chance that sperm could fertilize an egg and result in pregnancy.

4. Premenstrual symptoms: Some women experience premenstrual symptoms, such as mood changes, breast tenderness, and cramps, in the days leading up to their period. These symptoms may make it less enjoyable or comfortable to have intercourse.

Based on these factors, having intercourse 3 days before your period is not considered to be high-risk for pregnancy, as you are likely outside of the fertile window. However, it's important to note that every woman's cycle is different, and there are always exceptions to the rule. If you have concerns or questions about your menstrual cycle or the risk of pregnancy, it's best to consult with a healthcare professional.