In principle, if you do not want to have children, the sooner you find out that you have an unwanted pregnancy, the less damage it will do to your body, but first, you must ultrasound to determine that it is an intrauterine pregnancy before you can take any measures. For women who usually have regular menstrual periods, the earliest time to consider abortion is around 35 days after menopause, when the pregnancy sac can be detected by vaginal ultrasound, and oral medication can be considered. If you want to use abortion to terminate the pregnancy, the earliest you can do it is when the diameter of the gestational sac is larger than 1.2cm or 1.5cm, the main purpose is to prevent aspiration. If you do not want to have children in the short term, it is recommended that you take appropriate contraceptive measures after the abortion.