I just found out that I was pregnant 11-01 and I did this online calculator and it told me that I must have conceived Oct.10. The first day of my last period was Sep.26 So I think that would make me like 4or5 weeks? My guestion is on 11-02 the day after I found out, I started to bleed very light pink and it only happened that one day, that one time. All day I was worried something might be wrong, but I didn't see anymore pink! Anyone think they know what it was?