Originally Posted by
Commodus
Makes no sense to buy a saddle now. You've take one ride, you probably have half a dozen adjustments to make at least. Lower the saddle, for starters.
+1
A few more rides might help you decide if the saddle truly is causing you pain and that the source of the pain isn't just getting used to riding again. And from the picture, it looks like your seat if pretty high and the stem is pretty flat, so that may be forcing you over into an uncomfortable position.
Might be worth it to have someone at your LBS fit your bike to you. That might also help to make riding more comfortable.