I just got 39. I never missed my period. Dec 3, I had my last period. Dec 24 I had unprotected sex. Jan 1, I had just spotted very light which I thought i'm getting my perid because I feel I'm getting my period. I had three days very strong headache and also sleepiness before jan 2. I took one pregnancy test on jan 2 and it shows negative. I don't feel I'm pregnant. No symptoms. I don't have any child. any comment?