Welcome to the forum.
Ideally you should take the second pill at an interval of 12 hours, since you took it, your chances of getting pregnant is very slim. Emergency contraceptive
pills generally have side effects that cause irregular menstrual cycles.
Some women complain of heavy bleeding, some complain of scanty or irregular bleeding. Some get early period. Nausea
, lower abdominal cramps are some of the side effects. You should not get worried, however if you are restless you can do a pregnancy
test yourself with a kit with a specimen of your mid stream early morning urine.
Use regular contraceptive pills or condoms. Emergency CP should be used only in emergency, forced sex, condom rupture, etc.