Whats the likely hood of pregnancy from no ejaculation

I had unprotected sex that only lasted 5 seconds. Before i also milked the urethra from the base to the tip till i saw no “liquid” then wiped the tip. The reason it was only 5 seconds was because i told myself to stop and this isn’t smart, but im still worried. She had her period on jan 11th and the act happened jan 19th. Her last cycle was 34 days if that helps at all, the flo app say her average cycle length is 27-33 i dont put faith in apps for but for cycle length i feel it should be accurate esp if you put in correct data. To also note, i milked the urethra right after and there was nothing, in my mind thats shows if any “liquid” started to make its way. I know chatgpt isn’t the best thing to trust but i’ve been telling it to use pubmed index and have a script making it not just agree with me to agree. It’s been saying that my risk is under 2% does this sound reasonable?