Help! Late period but negative test?

I’m hoping someone has had a similar experience and can share theirs ? But I was supposed to start my period on June 17th, I usually get it for 5days. Rarely late and if I am late it’s by like a day or two but I still get it around that time frame. I took two pregnancy test one on Thursday June 25 but it was negative and the second one I took on Saturday the 27 which was negative too. Could I still be pregnant? I’ve been pretty safe for the most part. I’m planning on calling my doctor on what the next steps are but has this happened to anyone ? And what was your outcome?