cycle after d&c

Edi
I had an d&c in April and due to some complications had to have a second d&c in late april. I got my period may 20th (yay!) but now it's June 26. Aunt Flo is officially a week late and still no sign. I have had unprotected sex in between but I took two pregnancy test and both were negative. So what could be the problem? Has anyone cycle been off after a d&c? I've also had been needing to pee a lot lately but that's about it. I am freaking out and don't know if I should reach out to my ob\gyn.