I am a firm believer of family planning. i.e. discussing the idea of pregnancy and or possibility or termination. Having said that if you do not have this before hand, then you will suffer the consequences, and cannot blame anyone or say this is "unfair". If this was a fluke then I say there is nothing worse than an unwanted baby, yet another one on the planet. So, good luck....
P.S.
I never wanted kids either, I guess subconsciously knew that perhaps I am not the best father figure and/or I might pass on unwanted genes, but we are seldom dealt a hand that we plan, life is funny this way. Now I'm a father. My daughter's birth (I was 44) and the first 6 years were the best years of my life.