It would be a stretch but you never know!! I would wait until a missed period and take a test!

Condoms have holes in them that are 1 micron wide, but this is ok because sperm are 4microns wide.
However a tear you can see, it gonna be a whole hell of a lot bigger than 4 microns, so yes there is every chance some of those little swimmers escaped.
Can you get the morning after pill to be safe???
You might get away with it as it was just after your period but don't in any way shape or form bank on that.