How To Ascertain That My Hymen Is Intact?

Hey.. My bf put in the tip of his dick ( just the dickhead ) in my vagina today for the first time. It was unintentional as he was just touching his dick on my pussy when it accidently slipped in my vagina ( just the tip) . I felt a bit of a pain and he immediately pulled it out. I have never even put my finger inside there. Could I have broken my hymen today?