I had sex with my girlfriend... With protection but I cummed inside the condom. Then later on we started up again and I was curious if she could get pregnant from any cum that was still on the head of my penis. After about a minute I took it out fast realising what I have done. Is she pregnant?
When you had sex the second time, did you use any protection?
It's not sperm on the head of your penis that matters so much but it's the semen INSIDE your penis, in the urethra, that is the concern. That is forced out when you insert your penis into her vagina and YES it can get her pregnant. There are no guarantees that she will/won't get pregnant.
Urinating can help clean out the urethra.
Always use protection all the time.