Ejaculate on hands, fingered girlfriend, possibly pregnant?

A week ago, my girlfriend came over and we were fooling around for a while both partially naked. I fingered her a bit before she gave me a ha****b. Just before I came, I pulled my boxers up to keep things from getting messy, but we both ended up with my ejaculate on our hands, and I fingered her shortly afterward. I came, it wasn’t just precum, unlike most similar posts I saw here! My girlfriend is still a virgin, she has never had penetrative sex. She was supposed to receive her period two days ago, but still hasn't. She has however been 2 or 3 days late before, but not very often.  It's only after she was late that we realized maybe she could get pregnant from this because we searched online. We need to know if she could possibly be pregnant, what the chances actually are, and what we can look out for as signs that she is, please! Also, lately shes told me that shes always wet, I dont know if thats important or not. Help us!?! Her parents would be really upset, so were both anxious!