About a week ago I had protected sex with my girlfriend on the last day of her period. I made sure to use a new condom that had been stored correctly and even pulled out when close to climax. I didn’t throughly test the condom (put water in it to check for “micro tears”) but I did see the ejaculate sitting in the tip and didn’t see any dripping/large rips. How protected am I and are these micro tears even real?