Is it normal for a women to start her period week later after having intercourse?

The timing of a woman's period can be influenced by various factors, including hormonal fluctuations, stress, diet, and certain medications. While it is possible for intercourse to affect the timing of a period, it is not a common or reliable method of pregnancy prevention.

Intercourse can sometimes cause slight changes in hormone levels, which may affect the menstrual cycle. However, the typical menstrual cycle lasts between 21 and 35 days, and a variation of a few days is considered normal. If a woman's period is more than a week late, it is likely due to other factors or may be a sign of pregnancy.

It is important to note that relying on intercourse as a means of birth control is not effective. There are various reliable and effective methods of contraception, such as oral contraceptives, condoms, and intrauterine devices (IUDs), that can help prevent unplanned pregnancy.