Hi there, I have understood your concern. I will suggest you the best possible treatment options.
1. First of all do not panic.
2. As per your history, you have rightly taken
emergency contraceptive pill within 24 to 72 hours of unprotected sex act.
This works to prevent the
pregnancy in 95% cases.
3. I will suggest you to wait till the expected date of the cycle that you have stated . If at all you happen to cross the date then I will suggest you to get morning's first sample of urine tested for pregnancy. In case of doubt blood
beta HCG test and USG will be of help.
4. In presence of negative test results, your symptoms can be due to high dose of
progesterone hormone in the emergency contraceptive pill
You can simply wait for the onset of periods.
5 . Even if you are pregnant, you can opt for termination of the pregnancy with medicines safely till 9 weeks of pregnancy under medical supervision.
I hope this answer helps you.
Thanks.
Dr. Purushottam Neurgaonkar