Erica was played by Anna Faris and was one of the last memorable cameos before the series ended. I think this happened a few years after her Scary Movie fame died down.

She was a pregnant mother who was looking to give up her baby for adoption and accidentally thought Chandler and Monica were a doctor and a minister.

Surprisingly it was Chandler saving the match after the truth was found out. She was pretty dumb though, as she did not know that she was having twins until the last second.

I kind of wondered if we were going to see her again if they ever did a sequel series. But with Matthew Perry recently dead, very unlikely.