My period is normally every 30 days like clock work. Well when I should have gotten my period all I had was very very light spot when I wiped only. I didn't have anything to cover a pad or tampon I put a panty liner in thinking my period was on its way. Nothing was on it though. I am now 10 days past due and taken 2 pregnancy tests both negative. Should I wait a couple more days and take another if nothing shows up. Does any one recommend one kind of test over another one.