damn, read this thread abit too late... else i would've told you to stop.

dude dun la cheat on ur gf... if need s*x go ask ur gf for it... if you malang, get this girl pregnant, alot complication. talking from experience here.

worst case scenario is very easy to kena - gf leave you, u marry avg girl who is older than u by 4 yrs, raise baby at young age. seriously would suck man.

dude. i got my ex pregnant from pre-cum.

do the check up. and dont repeat.

the baby was mine, she didnt do it with anyone else and from the trauma i see her going through i believe her. tmr's the abortion anyway.

here's my advice, if you wanna get this thing over quickly. and i mean, totally.
1. buy a pregnancy kit
2. have that talk with her.
3. ask her to test. nowdays pregnancy kit can test even 3 days after sex.
4. 90% probably will be negative. if you're lucky enough, then talk to her again. make sure she knows it was 100% physical, and that you regret, and you dont wanna do it again.
5. mean it.
6. never. ever. tell your gf.
7. never. ever. have sex with someone you don't love.