safe period of unprotected sex

TO BE TOTALLY HONEST I DONT THINK THERE IS A SAFE PERIOD FOR UNPROTECTED SEX. YOU WILL ALWAYS HAVE THE RISK OF BECOMING PREGNANT, CAUSE SPERM CAN LIVE IN A WOMANS BODY FOR UP TO 4 DAYS MAYBE LONGER. UNLESS IF THE GIRL KNOWS HER CYCLE WELL ENOUGH THEN SHE WILL BE ABLE TO TELL YOU WHEN THAT IS. BUT BEFORE YOU HAVE UNPROTECTED SEX YOU SHOULD GET TESTED. CAUSE YOU COULD BE DANCING WITH AN STD. BUT IF YOU GUYS ARE IN A SERIOUS FAITHFUL RELATIONSHIP. THEN THERE SHOULD BE NOTHING TO WORRY ABOUT EXCEPT FOR THE UNWANTED PREGNANCY. I HOPE I HELPED YOU OUT A LITTLE! BEST REGARDS!