Hi Rather Hazy - try not to stress toooo much hun, my friend has a unicornuate uterus, and she has just had her second baby, totally natural conception etc. The only 'issue' for her was that both her bubs were about 3 or 4 weeks early, as the uterus could not accommodate the bub growing any bigger over those last few weeks of being preg. The main thing is, you will only be ovulating naturally every second month, seeing as you only have the one ovary, but with ivf, they can overcome this, by stimulating that ovary with drugs, no matter if it was due to ovulate or not.
If you like, prepare a list of Q's, pass them on to me, i can ask my friend, then i can get back to you with her responses. Just wanted you to know that pregnancy is still achievable for you! tp