PCOS False negative?

Ladies I am so confused. Period is late, have some symptoms of pregnancy. Took a test over the weekend it was faint but did look positive. Side note though it was a clear blue and they can be hard to read. I ran out and purchased two digital tests both read not pregnant. Purchased another two red line tests both reading negative. So confused. Has this happened to anyone else? With my first pregnancy I didn’t get a positive test until 3 months of being pregnant! My second pregnancy took a test and it showed positive right away.