Had unprotected intercourse (withdrawal method) 9days back. Today or tomorrow should be my first day of periods. Haven't got it yet. Did a home kit test (early morning) with i-can and it came as negative. Should I wait for 5-6 more days to see if I get my periods? My average cycle is 26days. Ther has been an odd month or so where it was 30 days. What should my course of action? I do not want to conceive a second child.