i think I flew into class c airspace accidentally withoutestablishing communication

tonight I went for a night flight with a buddy. We had a great trip
there, but on the way back he started fooling around with the GPS and
somehow I missed what he did. He changed our course to go straight
east instead of southeast. By the time I realized this, we were way
off course. I fixed our course back to my home airport, but I think
he also changed the GPS to where the map doesn't show the airspace
borders because soon after getting back on course I looked to my right
and saw a class C airport slightly in the distance. I couldn't really
judge how close we were, but we were close enough to where I was
probably in thier airspace. I kind of froze up and wasn't sure what
to do, so I just continued on to my home airport.

Am I going to get in trouble for this? It was completely accidental,
and I don't even know if I was in the class c for sure. Anybody have
any input? I'm sorry if this sounds stupid. I just got my private
pilot cert about 2 weeks ago.

Thanks