My usual period date would be on jan 7,8,9 of this jan month, on jan 6 I had an unprotected intercourse, till today I didn't get my periods. I had my urine pregnancy test on jan 28 and it was negative. I had a history of late periods and it did often skip some months, I am sensing periods like cramps on 11,12,15 and often i'm getting but i'm not seeing any blood on my pads. Please suggest something, what might be should I wait still. Due to that intercourse did it got delayed? I'm confusing.