You are at high risk for pregnancy.
If you have a 28, 29, or 30 day cycle, those would have been fertile days so no, it was not safe. You can become pregnant anytime you have unprotected sex.
You can become pregnant ANYTIME you have sex that you dont use a condom... plus those says are very close to the day you would of ovulated. If you dont want to be pregnant get on birth control or use protection. You wont be able to tell if your pregnant until you miss your period or a couple days before.