is used in contraceptive
pills, Primolut is not a contraceptive. Progesterone is a natural hormone with other uses as well. As she is trying to postpone her period and if she can start her pills soon after her period, she will be amply protected. Spermicides also can be used if there is no allergic reaction
. The progesterone preparations used in contraceptive pills are of different chemical structure and of a different dosage and usage pattern. Hope your query is answered.