How often should a period be late? Last month I was late almost 2 weeks and then aunt Flo finally came along. Now this month I'm so far 3 days late again, I took a test and it was negative. Been ttc for almost 3 years now. I have a 6 year old and I found out I was pregnant sometime this past July but had a miscarriage at 9 weeks in August and have been trying since. It was devastating, but it's not stopping me from trying again. Anyone else going through something like this? My body is confusing the crap outta me :(