TTC: thoughts?

My husband and I are TTC. I am now 8 days late... I took a test when I was  2 days late & at 4 days and both negative... neither were first Morning urine though... should I take another tomorrow morning? Should I wait to just see if I'm late? I am crampy & was unable to go to the bathroom for 3 days & my sense of smell is unreal these past couple days... thanks in advance!