Hello dear
I understand your concern
There is chance of the
pregnancy as sperm can live in the genital tract for 4-6 days.
Postinor 2 will not protect against the pregnancy as you took 72 hours after the sex.
Again you have second unprotected sexual intercourse at the time of ovulation, so there is high chance of the pregnancy.
White discharge could be due to side effect of the postinor 2 or
vaginal infection.
If it is foul smell then It could be a infection.
Vaginal swab test will help to confirm the infection after confirming the infection.
Wait for period to come.
If period will delay by more than 12 days from expected period date then go for urine pregnancy test and or blood
HCG to confirm the pregnancy/
if you will be pregnant then still you can terminate intrauterine pregnancy
by
abortion pill under the supervision of gynecologist.
Hope this may help you
Contact HCM for further health query
Best regards
Dr. Sagar