Deep Throat

So this is more of a question than a confession. I love to deep throat. My current boyfriend is long and pretty thick but I can still get it down my throat. I had him so far down my throat that I heard and felt a popping noise. Was this his cock going past my vocal cords? He didn't really seem to like that. Like it might have hurt him, but he didn't say. I just wondered if anyone else had experienced this? Thanks in advance!