Am i not safe? or is it just due to i-pill.?

Hi,
Welcome to ehealthforum,
If you had taken the emergency contraceptive pill within 48-72 hours of the unprotected sexual intercourse, it should work in preventing pregnancy (provided you were not sexually active without protection after taking it). Since the pills contain high doses of hormones, these can disrupt the normal hormonal and period pattern causing period/bleeding abnormalities and appearance of new symptoms. Wait and watch for your next periods which can be delayed. If you still have not had your periods, you should consider visiting your doctor/gynecologist for further evaluation to look for the underlying cause for your absent periods (especially rule out ovarian suppression or failure). If you suspect chances of pregnancy, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet and lifestyle.
Take care.