That would depend on how much you want a baby.

There is a great chart graph about reversal success rates which takes into account the length of time since your vasectomy. Check it out:

http://www.vasweb.com/results_chart.htm

There is another chart here:

http://www.vasectomymedical.com/vasectomy-reversal-success-rates.html

Unlike a vasectomy, most insurance plans do not cover the cost of reversal surgery, which can range from about $5,000 to $13,000. Although this is usually an elective, fee-for-service procedure, there are ways to make this expense more affordable.

http://www.vasectomy.com/htm/Reversal/cost.htm

I wish you luck….