welcome to healthcaremagic
in case of doubt you can take i pill
to avoid unwanted pregnancy
with in 72 hour of physical contact.
no harm in taking it in accidental exposure cases but dont use it on regular basis.
only use in emergecy in case of failure of your convetional contraceptive
after taking i pill some women may feel some period disturbances vary person to person but it normal so its advised only in emergency cases not on routine basis.
thankyou for your query
Dr. vikas poddar