Can I be Pregnant Rn ?

I had unprotected intercourse on June 22, during which my partner ejaculated inside me. I took Plan B approximately 24 hours later, on June 23. Afterward, I realized—based on data from this app —that I may have already ovulated prior to taking the emergency contraceptive.

My period was expected to begin on July 2, but it has not yet arrived, making it currently seven days late. I have not experienced any major symptoms apart from mild lower back pain, increased hunger, gas, and minor facial breakouts, which are typical premenstrual symptoms for me. However, I have not experienced cramping or breast tenderness, which are also common PMS symptoms in my case.

I took a Clearblue Early Response pregnancy test last night (July 8), and the result was clearly negative.

For additional context, my menstrual cycles are typically regular and closely align with the predictions generated by the glow app. I am aware that Plan B can disrupt the menstrual cycle but I am wondering if I should test again.