Question?? Could I be pregnant??

Nicole • Momma of 2 🌈👧❤🌈👧❤
So I took a test at 10dpo. BFN! I have been having some lower back pain. And I have been extremely horny (which happened the last time I was pregnant). Slightly nauseous at times. Getting headaches more often. AF is due to show in the next couple of days. Could I be pregnant or is this just signs of AF?