A week late for my period and a negitve pregnancy test is it normal to be this late sometimes?

i think you should definitly wait and take another test in like a week or so i dont think it would hurt to do that but if you got your period in july you shouldnt have been pregnant from those previous times he came in you but if he did again after your last period then i would be worried and seriously consider taking a test in a week or so but like i said taking it anyway wouldnt hurt