Oh yeah that has happened before. I had a pt who was G2P1 and had a normal length labor with her first baby. She came in and was 3cm,70%, -1, intact and contracting about every 5-7 min, but rated her pain at a 6 and wasn't even breathing with her ctxs. The dr said go ahead and admit her give her some Phenergan and nubain and I will be there in 2 hrs. I gave her the med (checked her before I gave it, still 3cm) and was in the room q15 mins to assess her. She was sleeping the whole time. About 1hr and 10 mins later she calls out and c/o's of pressure. She is still very calm. I look and the head is on the perineum! Well I got yelled at for not calling him when she was 6-7 cm. Umm.. I guess I should have kept my hand up there the whole time just in case.
We also had a nicer dr who checked a G5P4 and she was complete, +2 and walked back out to the nurses station. Well, the nurse pulled back her legs and before she could even push once the head slid out. He ran back in but all he could do was deliver the placenta. He was like "oh... I guess I shouldn't have walked out". Yeah you think?
Do you write incident reports on unattended deliveries? We have to and if the dr has had a lot recently they can get mad and blame you. They need to realize that if they are nice the nurses write the report nicer. "Pt had uncontrollable desire to push" vs. " MD called but did not attend delivery".
Just shake it off and know that you did all you could, sometimes pts just deliver fast like some deliver slow.