could I be pregnant?

Kaylee

I had my period July 8th. I had sex July 1st, 26th & August 6th and my SO finished inside me. I'm on nexplanon and never had issues with it before. I am a week and 4 days late so far, but I have the weirdest symptoms. extremely sore/sensitive boobs, very tired, weird appetite (some days I don't want to eat and some days I'm starving), weird cravings, nausea and dizziness. could I be pregnant? I haven't gotten a test yet.