Deflowering Pains

I'm 17 and I just lost my virginity to a boy that I've reconnected with (he moved back to our town) last night. It was wonderful and he was incredibly caring and gentle, and didn't ask me to do anything for him just yet because it was my first time. We used protection, and he was careful to make sure I didn't hurt too much, but my insides do feel a little jumbled, I'm very hungry (it was late and I hadn't eaten for hours and have been picky since I don't want to upset my stomach) and everything is sore as well as shaky since I only got 2 hours of sleep. I just want to make sure that all of this is normal and not a disastrous mistake on my part. Am I safe?