Does he know something I dont?

Im 9 days late and took 2 pregnancy tests this afternoon both obviously negative and when I got to the gym I was telling my husband how fatigued I feel and he keeps telling me he thinks im pregnant. Ive taken a toral of 5 negative tests but I still feel like I could be pregnant! Its so wierd because my symptoms arent anything crazy but I have a gut feeling and im worried that I am wrong.