thanks for your reply,so you mean even for a couple of seconds,can also infect me? ;(
Condoms provide 100% protection against HIV and other STD's if they do not fail, however if they do, a totally protected sex turns otherwise all of a sudden, making our sex as unsafe as it was without the protection. This is an important point, we must keep in mind always.
Your protection failed during penetration (duration does not matter much), therefore you were exposed to the risk. How high or how low, we have no tool to gauge the quantum of the risk, but it was not zero for sure.
Now you need to relax and wait for next 3 months to get yourself tested for HIV antibodies and collect your conclusive results