I had one internal at the hospital and I was 9 cm and they told me to start pushing. They didnt know i'd been in labour for 28 hours at home and up until then had refused to go to the hospital except for earlier that day when i went up, they checked me, said yes its labour and i said see ya and left. So when i got there they thought i was young and stupid and being a drama queen and nothing was really happeneing until they did the interal and were shocked!