Can a girl get pregnant if I had pre-ejaculate on my hand then touched her clit shortly after? I had ejaculated the night before and had since shower

Risk. Here is potential for pregnancy if sperm is deposited at the introitus (opening of vagina) or within the vagina. If not ready for pregnancy – use protection every time.
Probably not. There are always bizarre occurrences, but from what you're describing, odds are low. However, it does sound like there are some different sexual situations going on, so practicing safe sex and making sure she's also protected with birth control is the only way to improve your odds.