Can some one explain to me how it feels when the baby engages cause about an hour ago i got like a really bad pinching…

Can some one explain to me how it feels when the baby engages cause about an hour ago i got like a really bad pinching feeling for about 5 min then it stopped last monday he was at -3 and then yesterday he was at -2 plus i was 2cm and 50% dilated so I'm wondering if he could possible be to a 0 now or of its something else