Hi. I get a regular period every 28 days. I am 8 days late and no signs of it coming. Slight cramping a couple days after it should have come and a little looser stool but nothing showed up. 39 years old and tubal ligation with clips 8 years ago. Should I be concerned? I usually get my period accurate right to the time of day it will show up. No additional stress, weight gain or loss, or illness. I am overweight but have been for years. Should I see my GYN or wait? I am leaving for vacation in two weeks. I did take a HPT at the 5 day mark and it was negative (the kind that says it will show up to 4 days before you miss your period. I have had 2 C-sections but no hormonal or female issues.