I had my last period june 9th and had sex june 17th &'28th & 29th unprotected.. and im supposed to get my period july 10th which is today and i didnt?

Many possibilities: If you do not get your period in the next few days, please see you gynecologist. Many things can delay a period including pregnancy. Stress is a common cause of delayed menses and usually only delays it a few days. Consider using the morning after pill in the future after unprotected intercourse or failed contraception (like a broken condom) to avoid pregnancy.