I think I lost my virginity? Help!

Im 21 and I had sex for the first time yesterday (well almost). Im pretty sure the person didn't go all the way in (the pain was unbearable). I am not sure if my hymen broke or not but I was bleeding after words and today I've been spotting. My body is sore of course. Am I really not a virgin in the more? Will sex be the same for me the next time?