I think it all comes down to whether you can dismiss your yearning for another one or not. If its on your mind 24/7 and driving you crazy - you probably should have another one.. LOL

Having just been through this decision making myself - I wish you all the best. When I was pregnant with Eden I swore black and blue that she would be my last.

And then she was born.. and I desperately wanted another one!!!!

Good luck mate