Ok so I'm 20 and I started my period for July on the 4th-8th and buy my charting I was due for my next period on July 31st so I took a test August 1st it was negative so I retested about a week and a half later the pregnancy yest was in error so I decided to test the next morning but went to test and realized I was bleeding so possibly starting my period it messed up the second test so the first two days I was bleeding heavy then the third day was medium and this morning which should be the 4th day I have nothing?? Could I be pregnant..? I have had symptoms like fatigue, sore breast this is why I tested but then started or so I think I'm just really confused what's going on ?

It sounds like your period was just late. If you're still worried, take another home pregnancy test. If you really want to be certain, you need to take a blood test but urine tests are pretty accurate.

Yes does not really sound like it. Did you ever do a test, Do it always in the morning when you first wake up. But no it does not sound like you at, sounds like it was just late.