I'm getting worried...

Tristina
Okay so... Its day 9 of late period... I had went to morning star yesterday morning after work to get another hpt done.. And it was a very clear negative.. No faint lines, nothing. Its my 4th neg test.. I feel crampy like my pd could possible be on its way but no sign. I got tested for sti's .. All good there... My pap came back good. What could be happening?!? Sept. 7th was the last day I had sex.. It was with a condom.. Then literally 2 mins without (stopped because I was scared)