Until then 5 days ago, I was supposed to have my period after 26 - 30 cycle days. The last time I had my last period on my first day was on September, 8th of Monday for 5 days period. I think I'm actually having a irregular period for a while, I guess. So I don't know why I am 5 days late after my last period from September after had sex with my boyfriend. o.O So tell me your advise or something. Thanks.