Idk what this noise was

Riley

So I am 39w1+ and I've heard people hear a "pop" when their water breaks but what about something that sounds more like when you crunch into cartilage when eating? Cause I've never heard my body make THAT noise before but it most certainly just did and there was some weird kinda feeling as it happened in my lower pelvis when it happened. But no water leaking or anything besides a small bit of pain which I guess could just be the baby like normal? I don't know if this is a stupid question but I mean that noise would worry anyone not expecting it right?? I wasn't even moving when it happened! Just sitting at a desk when I heard/felt the "crunch". Should I be worried?