Tubes tied & Late period

Melanie • ♡Melanie♡

So I got tubes tied almost 3 years ago with my c-section, he is my last(2nd kid) and don't want more. I was 6-7 days late, and now on day 7 I have a little flow with cramps.... ?? Has this happened to any of you and is it just my period, not ectopic pregnancy?