I don't know about the nursing before surgery thing.
There are much more informed people over at the breastfeeding board.
You can post another one over there and there are much more informed mamas who will know the answer to this question.
Also do you go to LaLeche league meetings? It might be very helpful to get support from other nursing mommies during this time.www.lalecheleague.org
About the circumcision thing. OMG!! That does not sound right at ALL!!
My son has the same thing with tightness. And according to all my research it's normal to be tight when babies are this young. And if they continue to be tight later on it will naturally loosen on it's own when they are a young boy. And if for some reason that does not happen and it's still tight when they turn into a teen or young man and need it loosened for sexual reasons there are very simple exercises they can to do loosen it in the shower every morning and it only takes a few weeks to get it loosened enough to be back to normal.
Seriously from everything I read circ is way too drastic a measure to take for this semi-normal thing. In fact many un-circ'd boys have this.
That urologist sounds like a typical snip at every opportunity guy to me. Or perhaps he simply does not really understand the situation.
I would not circumcise him so quickly. And if this guy does not agree to put off the circ surgery, get a new DR!!
After reading everything about how much feeling they loose with circ I would NEVER EVER circ another baby. And understandably there are many women who deeply regret circ'ing their boy after learning about it.
Here's a thread about it :http://www.mothering.com/discussions...d.php?t=112410
good luck with the testicle surgery! I hope everything goes okay!