Gynaecology & Obstetrics All of the following mechanisms of action of Oral contraceptive pill are true, except: A Inhibition of ovulation B Prevention of feilization C Interference with implantation of feilized ovum D Interference with placental functioning 💡 Explanation All of the following mechanisms of action of Oral contraceptive pill are true, except: ✓ Correct Answer: D. Interference with placental functioning