First susan, i appreciate the response, but you shouldnt assume anything. We do use protection. We are VERY VERY careful. So please don't go around judging when you don't know the details. This is a girl i have been dating for over a year and who, together with her, we decided to get married in the next year or so, after i finish getting my degree. This isn't just some guy worried he knocked up his one night stand.
As for when, yes she was expecting it around valentine's day.
As for when her cycles are, i really don't know the details, but i believe she is pretty regular, if she is "late" she is only ever late by a day or two, and she has them once every 28-30 days.