Haii , I had unprotected sex on Sep 15th after my periods (Sep 9th to 13th) and took I pill within 12hours and got periods again on Sep 23rd which lasted for 3days and took hpt on Oct 5th and it says negative... I get freaked out thinking I'm pregnant... Plz help me

The iPill will mess up your period and might readjust the date to the 23rd instead of the 9th. I would calm down and wait until the end of the month. If you don't get your period then, then you'll have to wait about two weeks, nov 6 or so, and take a home pregnancy test then.