My girlfriend gave me a blow job then came on her but I wiped it off and I had minimal cum on my hand I completely wiped it off but let's say there was minimal cum on my hand how likely would she be to be pregnant happend 20 days ago no symptoms of pregnancy
The only way there would be a pregnancy risk in the scenario you're describing is if you ejaculated on or in her vulva/vaginal canal. If that did not happen, then pregnancy is not a possibility. You can read more about why that is here: Human Reproduction: A Seafarer's Guide