I deleted my pictures

The photos should be recoverable with undelete software.

1) Step 1 - Don't save any more photos on that card.
2) Obtain undelete software
3) I have successfully used recuva.exe to undelete photos from a memory card. This program should be available online. I think it is freeware.
4) Install this program on to your computer and/or on to a spare memory stick.
5) Start the Recuva program and plug the memory card into your PC (or plug in the camera to your PC using a USB cable. Your computer will recognize the card in your camera as an external drive.

If you have taken no more photos you should be able to recover all the deleted files from your memory card.

Good luck!

Yes, firstly please do not store more files on the card, incase the deleted pictures are overwritten and gone forever.
Please then conntent your card with a Windows PC. Afterwards, you can use a data recovery tool for retrieving deleted photos. Here the linked is a detailed guide about how to recover deleted pictures.