If it's like a tablespoon .. then he popped your cherry- assuming it hasn't been popped previously. If so, he just hit your cervix. Which causes a bit of pain, and a bit of blood. If it was your hymen he broke, it will hurt like a bitch for awhile.
next time tell him to wait a little longer and get you more turned on physically, or use some lube. bleeding is normal if it was your first time (or close to it) but eventually it shouldn't hurt at all and if it is he's doing it wrong and you need to tell him! I thought that was just how it was supposed to be with my ex and it was miserable, I bled every time, but my current boyfriend takes the time to get me all worked up and wet so it doesn't hurt at all it feels really good.