Help a sistah out

Tihane

Okkay so i had sex with my partner 2 days before ovulation and now im 2 days late on my period! The cramping and back pain have been ongoing for !almost 2 weeks and i gagg like crazy...and not to mention the frikkin headaches im gettin! Unfortunately i took two test today and it was a BFN ..is it too early until my BFP or am i juss overthinking lol????