Hello I'm 8 days late on my period and my period has always been regular never late. My husband and I have been using condoms to prevent pregnancy and we have not seen any breaks yet . I have took 4 HPT and 1 blood test and all came back negative.. I have a doc appt next week to see what they say.. do any one no what could be the problem?

Could just be an off cycle, could be a positive result on a pregnancy test just isn't showing up yet. Your doctor will probably have you take another test at that time. Sometimes a period is skipped or shows up late now and then.

Or could be stress. It could be a few different things. All we can do is offer possibilities, but we can't tell you what it is. Birth control pills/shot/patch/Iud might be a good back up plan to prevent pregnancy.