I Am A 26 Year Old Mother.my Average Period Cycle

I am a 26 year old mother.my average period cycle is 33 days.on the 5th day of my last period i have done unprotected sex.8 hours later i took an emergency contraceptive pill orally.after seven days i have vaginal bleeding for two days.it resembles my period bleeding.but i am very confused.is this a sign of pregnency or something else? Please help me.