Hello, my period was 10 days late i had unprotected sex on the day i was ovulating. i started spotting pink and then orange and then the next morning full blow red should i go see a doctor. im confused was pregnant or was it just late?

Hard to guess: Pregnancy is the most common cause of a missed period. If not pregnant, other causes of a late or missed period include: excessive weight loss or gain, increased exercising, emotional stress, having an illness, traveling, medicines (especially birth control pills), hormonal disorders, etc... One might do a home pregnancy test and see what it says, or might wait a few weeks for the next period.