On My Period And Weeing Lots Late Period, Negative Pregnancy Test! Please Help!!?

Late Period, Negative Pregnancy Test! Please Help!!? - on my period and weeing lots

Hello my way to my time on 13 September but never arrived. I was very tired, weeing a lot, bad sore breasts and a little bit. I did a test on Tuesday evening and was negative. Today I have mild cramping and menstrual pain as EWCM. Do you think you may be pregnant, or maybe my next period. Thanks