<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have been taking trie sprintec for over six months my boyfriend and I never use condoms he ejaculates in me and we sleep with him still inside me well this month my period was three days late and on the fourth day it was only brown spotting when I wiped and only lasted 3 days for the past two weeks I have been having pregnancy symptoms but negative blood and urine test is it possible Im pregnant  <response>: Hello, As you have gotten NEGATIVE blood and urine test, then you have NO chance of pregnancy in this context. Sprintec is quite effective OCP and prevents unwanted pregnancy more than 99 on regular using. It may cause brown discharge sometimes. Maintain genital hygiene properly. Other reasons are hormonal imbalance, old endometrial tissue, vaginal or pelvic infection, weight gain etc. Following initial test report, you need to consult with gynecologist for next line management. Good luck. 