So I had my tubes tied back in January of 2016 after I had my last child and I had my period pretty regularly ever since like usual but this past month I haven't start yet I usually start about the 3rd Thursday of the month and I just hoping it's stress related I'm freaking out I've never been this late since having my tubes tied I've been nauseous moody cramping by no period should I wait it out to see if it's just stress causing me to be late are should I take a test thanks !