Pictures won't show in my Sent Mail on iphone?

It had some text and three pictures which I copy and pasted into the mail. I went to my Sent Mail folder and in the message, there's the text but no pictures ;_; Is that normal? Was the copy/paste thing the problem?

I used a gmail account

Refresh it. Otherwise it didn't send

Have you tried restarting or resetting your iPhone?

Restart: Press On/Off button until the Slide to Power Off slider appears, select Slide to Power Off and, after the iPhone shuts down, then press the On/Off button until the Apple logo appears.

Reset: Press the Home and On/Off buttons at the same time and hold them until the Apple logo appears (about 10 seconds). Ignore the "Slide to power off"