First of all, there is no chance of pregnancy
as you did unprotected sex on safe period. Also taking pill gives extra protection against pregnancy. Continuous bleeding is due to withdrawal effect of the pill and it is a very common & normal phenomena.
The period is delayed due to hormonal
imbalance associated with the pill. She can wait at least 7 days from expected due date.
In case of absence of period, need to investigate properly to rule out underlying pathology by USG lower abdomen & hormone assay etc. Consult with your doctor and take suggestive measures.
, take healthy diet with iron supplements
, control body wt and need proper sleep.
For direct consultation with me, you may visit my profile on http://www.healthcaremagic.com/doctors/dr-soumen-patra/63326.
Be well and take care.