Why Does the Ovulation Test Show One Dark and One Light Line Four Days Before Menstruation?
When using an ovulation test strip a few days before menstruation, seeing a faintly positive result with one deep and one shallow line may cause some confusion. This situation may be due to being in the luteal phase or it may be a sign of pregnancy. The luteal phase is a part of the menstrual cycle during which hormonal levels in the body change, leading to a faintly positive test result. In the case of pregnancy, early hormonal changes may also affect the results of ovulation test strips.

1. Luteal Phase in the Menstrual Cycle
The luteal phase is the stage after ovulation during which progesterone levels rise in the body. Using an ovulation test strip at this time may show a faintly positive or negative result because it is not the ovulation period. Seeing such a result should not cause undue concern. Hormonal levels usually return to normal after menstruation, and no special treatment is required.
2. Pregnancy
If you are trying to conceive and have normal sexual activity, the possibility of pregnancy cannot be ruled out. After fertilization, hormonal levels in the body will change, and ovulation test strips may show a similar faintly positive reaction. It is recommended to use a pregnancy test strip for further detection or to visit a hospital for blood HCG tests and abdominal ultrasound to confirm.
To better manage your health, pay attention to diet regulation in daily life and consume foods rich in plant estrogens, such as tofu and soy milk. Regular schedules and adequate sleep also help maintain hormonal balance in the body. Maintain a good mindset and avoid excessive emotional fluctuations. If you experience obvious discomfort symptoms before or after menstruation, it is important to seek medical attention promptly to avoid delaying treatment.
When facing ovulation test strip results, understanding the possible causes and taking appropriate measures is key. Pay attention to changes in your body and undergo professional medical examinations at the right time to better understand your health status. Maintaining a healthy lifestyle not only contributes to physical health but also lays a good foundation for preparing for pregnancy.