Two Condoms is not very good practice, it causes friction that might causes Condoms to fail. You'll see your penis barely expose if your condom break coz it will split into half. As long as the head of your penis is covered, you have no risk.
condom failure is CATASTROPHIC
No visible break appeared on the condoms.Do condoms break minutely that we cant notice them???
You didn't have an exposure. Learn how to use a condom correctly before you do put yourself at risk.