Yes. You need to host the pic somewhere, I use the photobucket app. It's free and easy to use.
But I don't think you can host pics of your wiener on there. There are sites that allow those kind of photos but I'm not sure what they are. Maybe AmPic people can direct you to them.
If you need me to walk you through the photobucket app (resizing, image code, etc) I can happily explain in detail (I've done all my profile pics on my iPhone) but I'll stop there if it's wiener/pussy/boobs photos.