I ate contraceptives and my menstruation was half a month ahead of schedule.

After eating contraceptives, menstruation is half a month ahead of schedule, which may be related to withdrawal bleeding, drug omission or improper use, ovulation bleeding and other factors.

1. Withdrawal bleeding

Emergency contraceptives are highly effective progestins, which will cause a transient increase in progesterone and estrogen in the body after taking them, stimulating endometrial shedding and bleeding, forming withdrawal bleeding, rather than true menstruation. This bleeding is usually small and can stop itself in a short time without special treatment.2

. Missed or improper medication: If you are taking a short-acting contraceptive pill, you may not take it correctly or miss it according to the instructions. In addition, the medication time is not right, such as not in the menstrual period of the third-fifth day to start taking, may also lead to endocrine disorders, so that menstruation

advance.3. ovulation bleeding

Although this situation is not directly related to taking contraceptives, but ovulation bleeding may also occur in the time period after taking contraceptives. It is usually associated with insufficient luteal function and reduced progesterone levels after ovulation, and occasionally occurs without special treatment.

If bleeding is large or persistent, it is recommended to seek medical examination and follow medical advice.