Is this normal ..TMI

You’d think by now I would know what is and isn’t but damn it sometimes my body throws me a ringer and gets me all nervous so I begun taking antiobiotics keflex on Tuesday for uti my period by then was already two days late so doctor said it had nothing to do with period being late my period ended up being a whole week late. I did test and everything was negative but my period has been nothing but clots and I am just super worried I literally haven’t even worn a pad it’s been so light it’s just been a few spots in a pants liner but okay maybe stress but every time I go to the bathroom this happens is this just tons of clots I am having because this is the only form of bleeding I am having and the whole time it’s been deep red blood like this