I need help ASAP !

Last week I was supposed to get my period around the 18th or 19th, 5 days passed so I decided to take a pregnancy test they both came back negative, fast forward two days I decided to take another one and I came back positive( I took 2, both were positive). Last night I took two more and I came back negative and I took a digital one this morning and it came back negative?? I’m so confused. And a couple hours ago I started bleeding. Did I get my period? And the cramp are terrible.