Thank you for sharing your question with the EmpowHER community.
You did the right thing by doubling up and it's better that he didn't finish inside of you. However, I am sure you know the risks of unprotected sex, so there is a chance that you could be pregnant.
Most likely you are fine since you did double up. How many days late are you? Your period may just be delayed due to doubling up.
Taking a pregnancy test at this point would be accurate-I know it's nerve wracking to take a test, but it's really the only way to know for sure or wait a couple more days and see if mother nature comes.
Hope this helps.