Help!!!!

Me and my husband have been trying for baby number 2, we baby danced my whole ovulation week that glow gives me including a day or two after my actual ovulation day. I started my period a day earlier than expected, but now I’m having ALOT of pregnancy symptoms I had when I was pregnant with my son. Is it possible I could still be pregnant? I’m always hungry, turning my head too fast makes me dizzy, I’m always tired, I’ve been getting crazy headaches, and a lot of lower back pain...