i differ in opinion from harvey_dunn in a couple of ways.
1) i have a friend (a former roomate) who was "naked grinding" with a guy (no penetration) and he ejaculated on her pubic hair. she became pregnant from this. although she swears she was not penetrated (and i believe her...why not)...she got pregnant.
here's the thing. is it possible? yep. is it likely? NO! she just had extremely bad (or good if that's your perspective) luck.
2) as far as your virginity is concerned, if you're not penetrated, then, my feeling is that you are still a virgin.
also, you would be wise to listen to what people are saying about condom use though. if you're going to get a penis near your vagina, it needs to be covered. good rule to go by. that prevents pregnancy and also stds...which you're probably not thinking about at this point, but is definitely worthy of thinking about for your own future health.
good luck sweetie!
jasmine