Pregnant?

I just started trying to get pregnant with my boyfriend. We tried when I was ovulating. We were very sad when I got my period. But today, as my ovulation window is starting to again, I have been feeling nauseous for the past 3 days, especially in the morning. Do my question is, do you think I could be pregnant? Have you had your period in the beginning of pregnancy? We would take another test but thought I asked on here first.