14 dpo HELP!!

So I think I ovulated somewhere around June 4th because I took an ovulation test that morning and it was positive. So that means that I am close or at 14 dpo. My question is that I took 2 tests this morning and both were negative (one was first response and the other was like a stick) could I Be pregnant and it just not be showing up on the test? Today is June 17th btw