If you were pregnant, then a test would be positive now. You need to get a test and check.
If what you are saying is true, and with consistent use of the condom and no breaks, then the chance is very low, but not zero.
Here is what I would recommend:
1. Do a home pregnancy
2. Make an appointment with an OB/GYN to discuss birth control pills - they will regulate your cycles and decrease the chance of an unplanned pregnancy