It is still possible to get pregnant after taking contraceptives. The primary mechanisms of contraceptives are to achieve contraception by inhibiting ovulation, altering cervical mucus properties to prevent sperm penetration, or interfering with fertilized egg implantation. However, these mechanisms do not always function perfectly in all situations. Incorrect usage, expired medication, improper storage conditions, or individual differences leading to abnormal drug absorption and metabolism can all contribute to contraceptive failure. Emergency contraceptives should be taken as soon as possible within 72 hours after unprotected sex, while long-acting contraceptives need to be taken on time and in the correct dosage, with any delay potentially reducing their effectiveness. Certain medications, such as antibiotics and anticonvulsants, may interfere with the metabolism of contraceptives, thereby affecting their contraceptive efficacy. Everyone's physiological condition and response to medications vary; some individuals may have lower sensitivity to contraceptives and may still become pregnant even when used correctly. Even after taking contraceptives, the possibility of pregnancy cannot be completely ruled out. In cases where pregnancy has occurred, prenatal examinations should be conducted as early as possible to ensure the health of both mother and child.
