Medication abortion is generally not recommended at 35 days of pregnancy. This is because 35 days of pregnancy is too short and the gestational sac may be small or not even present when an ultrasound is performed in the uterine cavity. When performing a medication abortion, the gestational sac in the uterine cavity must be about one centimeter. If it is too small, it may result in an ineffective medication abortion. If it causes an ineffective medication abortion, you may have to take two medications at the same time, which can have certain effects on your body. Medication abortion is only available within 49 days of pregnancy and the gestational sac is above one centimeter and below two centimeters. If it is too large, it may cause the chances of incomplete medical abortion to increase greatly. In such a case, it is recommended to go to the hospital for an ultrasound to see the condition of the gestational sac, and it is best to go back for a medication abortion at an interval of 5-7 days.