Will a condom that falls into the vagina come out on its own?

Patient's question:

Detailed medical condition and consultation purpose: Condom fell into the vagina accidentally and was not noticed at the time. Later, when it was found, it couldn't be retrieved. Is it serious? Will it come out on its own?
Duration of onset and current duration: Approximately three hours
Current general condition: No symptoms
Ancillary tests: None

Doctor's answer:

Should be fine.