Yes, using medical abortion pills at 40 days of pregnancy is safe, but it must be done under a doctor's supervision. First, a doctor must confirm the pregnancy is not ectopic (outside the uterus). The regimen involves two medicines: 1. Mifepristone (200 mg): Take one tablet orally on day one to stop the pregnancy from growing. 2. Misoprostol (800 mcg): 24 to 48 hours later, take four tablets, either placed under the tongue or vaginally, as prescribed. This will cause cramping and bleeding. Please consult a gynecologist before starting to ensure correct dosage, safety, and to plan vital follow-up care.