i had my period about 2 and a half weeks ago. i had sex about 4 days after it ended. unprotected. i am on the pill. yesterday i noticed a brown/bloody discharge. it lasted about a day and it was very light. ive never experienced this before. tonight im getting sharp needle like pains right above my legs. they come and go and they hurt! im also getting dizzy when i walk or look up to fast. is it possible that i could be pregnant? i would be happy either way but it is to soon to take a test. my mom wants me to wait about 2 more weeks. any advice would be great... my mom doesnt know how to answer some of her questions because she said that her first signs were morning sickness and a change in appetite. help?