Smokes, i've just started riding myself so i know were your coming from, legs like jelly after tonight. 9.8 miles which is the longest ride i've done but i recovered a bit quicker than before
What type of bike are you using ? mountain,hybrid or road bike.
The only reason i ask is because i tried a mountain bike but because of the knobbly tyres i found it hard to keep a consistant pace, I was fighting the bike, if you know what i mean. But on the bike i eventually bought (Hybrid) with road tyres it was a lot better. Keep at it though fella cos you will enjoy it, i am