The progestogenic emergency contraceptive pills act by -
Ans. is 'c' i.e., Anti-implantation effect o If ovulation and feilization occur, the blastocyte fails to implant (anti-implantation effect) because endometrium is either hyperproliferativer or hypersecretory; not suitable for nidation. o This is the mechanism of action of postcoital (emergency) contraceptive pills.
Altered cervical secretion
Inhibition of ovulation
Anti-implantation effect
Inhibition of LH secretion