8dpo and cramps

8dpo cramps and no sign of period. Normally I get cramps and a few hours later BAM! Aunt Flow has made her arrival! But that bitch still hasn’t showed her face yet. It’s weirding me out! I had unprotected sex on ovulation day but I don’t know if I’m pregnant or over worrying about it. I just feel like shit. I have been having headaches and nausea and I’m waiting to test til at least 10dpo(Thursday)—Would it be too early?