Hi, Dronis 20 is a oral contraceptive
pill (OCP) containing Ethinyl Estradiol
, an Estrogen & Drospirenone
, a Progesterone
. The advantage of Drospirenone is that, unlike the earlier Progesterones, it will not result in growth of facial hair or hair loss (seen in some women). OCPs prevent conception by
1. Converting the ovulatory into anovulatory cycles.
2. Altering the cervical mucous thick & making it unsuitable for sperm penetration.
3. Increasing uterine contractions that doesn't favour conception.
4. Creating unfavurable conditions that inhibit the implantation
even if the conception (fertilisation) has occured.
OCPs can result in changes in the period pattern when you take them continuously & probably that may be the reason for the delay. Since you have taken a full course in march & since it is not a proper intercourse you need not worry. Besides, even if the fertilisation had occured by chance, implantation is not possible because the uterine endometrium (lining of uterus) will not be favourable for it.