So if im ovulating does it mean im not pregnat?

so samething i had unprotected sex with my husband for a week right after my period now its been 2 days that i feel sick and i have crams and so tierd and my head hurts for like 5min then it go's away this goes on all day its only been almost 2week since we had sex but ovulating right now and i have cramps!! it has never hapen before to me....