iud out of place?

i had sex with a guy last night who was pretty big, while we were having sex he said that my iud had actually poked him a couple times. I have never had this happen before but i brushed it off because i figured he was just big enough to get up there and hit it. However, i have never bled during sex before with any other guy and this time i was bleeding and still am bleeding a little the day after.. could he have moved my iud out of place??!