Late period

I’m 3 days late, we don’t use protection just the pull out method and I’m not on BC. My period has been late before by a day or two, long enough to worry me into taking tests only to get my period hours later. I took two tests yesterday morning and both came back negative. I’m having white discharge at the moment but no other symptoms of pregnancy. Anyone else experiencing this? I don’t feel pregnant and don’t want to jump to conclusions since I have a neg test but boy is this weird!