So I’ve been trying to get pregnant. I had sex a day before ovulation and then everyday of my ovulation after that . I’ve had headaches and just got sore bread today . By period is supposed to come on in 3 days . I’ve been taking test that are meant for early pregnancy results they are negative. I took one a few minutes ago it was negative it was the clear blue brand. Is it just too early should I wait until I miss my period ?