Yes, there is a chance you could be pregnant if you had unprotected sex. Not all women ovulate in the middle of their cycles. If you don't want an unplanned pregnancy you need to use protection every single time you have sex no matter what day it is in your cycle.
Chances Are You Probably Are Not Pregnant Unless You Normally Ovulate During your Period. My Period Is Only 5 Days Long Normally But My cycle Ranges From 26-29 Days... How Long Is Your Cycle. If It's Longer Than 28 Days You Wouldn't Ovulate During Your Cycle