I had my tubes clamped 10 yrs ago and last month feb 21 2014 i had my period it was normal but thismonth i haven't had one and im 6 days late?

Unlikely pregnant: However...Pregnancy happens!depending on what procedure was done for your tubes, its possible, but rare, for a communication to recur and for a pregnancy to occur. Sometimes this can be a tubal pregnancy. But, most likely something else is causing your period to be irregular. Stress, illness, medical conditions, exercise, starvation, thyroid disease, medications, etc can cause it.F/u if continues.