yeah, it shouldn't last that long. maybe a min or 2. maybe the baby was laying on something wrong and that's what was causing the pain.
to me, real contracions feel like bh with severe cramps and back pain. your stomach gets extra hard, and it kinda feels hard to breathe. and then in a min. it's over, until the next one
i would keep a watch, if it continues to happen, then i would call or go see the dr.