6 Days Late, need some advice!

Hi I'm 6 days late, my hubby and I had unprotected sex on Nov 26, and Dec 5 (Ovulation Day). Some symptoms such as headaches, cramping on my left side about a week ago, more tired, craving cheese sometimes? And urinating more frequently. I took a first response early test yesterday morning (Dec. 24) and it was negative...I think I saw a veryyyy faint second line but maybe my eye was just tricking me?! Should I test again? If so, when? Thank you so much ladies! Also, I was on birth control pills for about 3 years then got off in October. My mother in law said if you get off BC you ovulate more afterwards?