My last period was oct31 in feeling a little sick every once in awhile books are a little sore and I am really tired could I be pregnant

Have you taken a pregnancy test?

Is your period late? Have you had sex?

If you've had sex, then yes, you could be pregnant. If your period is over a week late, try a pregnancy test using first morning urine. If it's negative then test again if you miss your next period.