period and negative tests

Has anyone had negative pregnancy tests and a lighter period than usual and be pregnant? I’m feeling so many pregnancy symptoms but I still got my period (it’s not nearly as heavy as it normally is but it’s not spotting) and had negative tests all prior to my period starting. I never retested after my bleeding started. Just wondering if there are any cases out there where one has had both a negative test and a period and still ended up being pregnant.