Can pictures have been taken on a digital without a memory card?

I thought I took pictures on an Olympus FE-130 but upon going crazy trying to delete the unwanted picture, discovered there was no memory card in the camera. Does this mean the pictures were not taken? Does it possibly mean the pictures are in the camera still and I can be "caught"? HELP!

My digital camera takes a memory card, but I dont have one and it takes pictures fine.
A memory card just lets you take more pictures.

You don't have to unless you're gonna put the pictures on the computer or something. I'm not real sure though.

yes your camera has it's own memory cause some cameras do. so the picture may still be there just check it and delete it, but if u dont see the picture then maybe u deleted it.

thats for sure a memory card in somewhere of ur camara .u just dont konw that.pictures cant be taken without card.